diff --git a/README.md b/README.md
index dc889be..f06c186 100644
--- a/README.md
+++ b/README.md
@@ -49,16 +49,37 @@ You can bind this to a keyboard shortcut by adding to your `keybindings.json`:
 
 #### Peek and Go to Definition for Wiki Links
 
-![peek-and-to-to-definition](demo/peek-and-go-to-definition.gif)
+![peek-and-go-to-definition](demo/peek-and-go-to-definition.gif)
 
-#### `cmd+shift+f` to Search Workspace for Notes with #tag
+#### Create New Note On Missing Go To Definition
 
-![tag-search](demo/tag-search.gif)
+![create-note-on-missing-go-to-definition](demo/create-note-on-missing-go-to-definition.gif)
 
 #### New Note Command
 
 ![new-note-command](demo/new-note-command.gif)
 
+#### Peek References to Wiki Links
+
+![peek-references-wiki-link](demo/peek-references-wiki-link.png)
+
+#### Peek References to Tag
+
+![peek-references-tag](demo/peek-references-tag.png)
+
+#### Find All References to Wiki Links
+
+![find-all-references-wiki-link](demo/find-all-references-wiki-link.png)
+
+#### Find All References to Tag
+
+![find-all-references-tag](demo/find-all-references-tag.png)
+
+#### `cmd+shift+f` to Search Workspace for Notes with Tag
+
+![tag-search](demo/tag-search.gif)
+
+
 ## dev
 
 Run `npm install` first.
@@ -83,8 +104,6 @@ Run `npm install` first.
 
 ### TODO
 
-- Add command to create file based on name in the wiki-link under the cursor
-- Add command to create new note with name + heading
 - Provide better support for ignore patterns, eg, don't complete `file.md` if it is within `ignored_dir/`
 - Should we support filename without extension, eg, assume `[[file]]` is a reference to `file.md`?
 - Should we support links to headings? eg, `file.md#heading-text`?
diff --git a/demo/create-note-on-missing-go-to-definition.gif b/demo/create-note-on-missing-go-to-definition.gif
new file mode 100644
index 0000000..7799444
Binary files /dev/null and b/demo/create-note-on-missing-go-to-definition.gif differ
diff --git a/demo/find-all-references-tag.png b/demo/find-all-references-tag.png
new file mode 100644
index 0000000..9fd471e
Binary files /dev/null and b/demo/find-all-references-tag.png differ
diff --git a/demo/find-all-references-wiki-link.png b/demo/find-all-references-wiki-link.png
new file mode 100644
index 0000000..e183b2a
Binary files /dev/null and b/demo/find-all-references-wiki-link.png differ
diff --git a/demo/peek-references-tag.png b/demo/peek-references-tag.png
new file mode 100644
index 0000000..2297dac
Binary files /dev/null and b/demo/peek-references-tag.png differ
diff --git a/demo/peek-references-wiki-link.png b/demo/peek-references-wiki-link.png
new file mode 100644
index 0000000..385a097
Binary files /dev/null and b/demo/peek-references-wiki-link.png differ
diff --git a/package-lock.json b/package-lock.json
index c934fb6..6aacf27 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,6 +24,12 @@
         "js-tokens": "^4.0.0"
       }
     },
+    "@types/chai": {
+      "version": "4.2.11",
+      "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.11.tgz",
+      "integrity": "sha512-t7uW6eFafjO+qJ3BIV2gGUyZs27egcNRkUdalkud+Qa3+kg//f129iuOFivHDXQ+vnU3fDXuwgv0cqMCbcE8sw==",
+      "dev": true
+    },
     "@types/color-name": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
@@ -36,12 +42,41 @@
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       "dev": true
     },
+    "@types/events": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@types/events/-/events-3.0.0.tgz",
+      "integrity": "sha512-EaObqwIvayI5a8dCzhFrjKzVwKLxjoG9T6Ppd5CEo07LRKfQ8Yokw54r5+Wq7FaBQ+yXRvQAYPrHwya1/UFt9g==",
+      "dev": true
+    },
+    "@types/glob": {
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/@types/glob/-/glob-7.1.1.tgz",
+      "integrity": "sha512-1Bh06cbWJUHMC97acuD6UMG29nMt0Aqz1vF3guLfG+kHHJhy3AyohZFFxYk2f7Q1SQIrNwvncxAE0N/9s70F2w==",
+      "dev": true,
+      "requires": {
+        "@types/events": "*",
+        "@types/minimatch": "*",
+        "@types/node": "*"
+      }
+    },
     "@types/json-schema": {
       "version": "7.0.4",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.4.tgz",
       "integrity": "sha512-8+KAKzEvSUdeo+kmqnKrqgeE+LcA0tjYWFY7RPProVYwnqDjukzO+3b6dLD56rYX5TdWejnEOLJYOIeh4CXKuA==",
       "dev": true
     },
+    "@types/minimatch": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.3.tgz",
+      "integrity": "sha512-tHq6qdbT9U1IRSGf14CL0pUlULksvY9OZ+5eEgl1N7t+OA3tGvNpxJCzuKQlsNgCVwbAs670L1vcVQi8j9HjnA==",
+      "dev": true
+    },
+    "@types/mocha": {
+      "version": "5.2.7",
+      "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-5.2.7.tgz",
+      "integrity": "sha512-NYrtPht0wGzhwe9+/idPaBB+TqkY9AhTvOLMkThm0IoEfLaiVQZwBwyJ5puCkO3AUCWrmcoePjp2mbFocKy4SQ==",
+      "dev": true
+    },
     "@types/node": {
       "version": "10.17.15",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-10.17.15.tgz",
@@ -145,6 +180,15 @@
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       "dev": true
     },
+    "agent-base": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz",
+      "integrity": "sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==",
+      "dev": true,
+      "requires": {
+        "es6-promisify": "^5.0.0"
+      }
+    },
     "ajv": {
       "version": "6.12.1",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.1.tgz",
@@ -158,6 +202,12 @@
         "uri-js": "^4.2.2"
       }
     },
+    "ansi-colors": {
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-3.2.3.tgz",
+      "integrity": "sha512-LEHHyuhlPY3TmuUYMh2oz89lTShfvgbmzaBcxve9t/9Wuy7Dwf4yoAKcND7KFT1HAQfqZ12qtc+DUrBMeKF9nw==",
+      "dev": true
+    },
     "ansi-escapes": {
       "version": "4.3.1",
       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-4.3.1.tgz",
@@ -199,6 +249,12 @@
         "sprintf-js": "~1.0.2"
       }
     },
+    "assertion-error": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
+      "integrity": "sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==",
+      "dev": true
+    },
     "astral-regex": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/astral-regex/-/astral-regex-1.0.0.tgz",
@@ -239,18 +295,50 @@
         "concat-map": "0.0.1"
       }
     },
+    "browser-stdout": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.1.tgz",
+      "integrity": "sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==",
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+    },
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       "integrity": "sha1-DTM+PwDqxQqhRUq9MO+MKl2ackI=",
       "dev": true
     },
+    "buffer-from": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
+      "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
+      "dev": true
+    },
     "callsites": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
       "integrity": "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==",
       "dev": true
     },
+    "camelcase": {
+      "version": "5.3.1",
+      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+      "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+      "dev": true
+    },
+    "chai": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.2.0.tgz",
+      "integrity": "sha512-XQU3bhBukrOsQCuwZndwGcCVQHyZi53fQ6Ys1Fym7E4olpIqqZZhhoFJoaKVvV17lWQoXYwgWN2nF5crA8J2jw==",
+      "dev": true,
+      "requires": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.2",
+        "deep-eql": "^3.0.1",
+        "get-func-name": "^2.0.0",
+        "pathval": "^1.1.0",
+        "type-detect": "^4.0.5"
+      }
+    },
     "chalk": {
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       "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
@@ -268,6 +356,12 @@
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       "dev": true
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+    "check-error": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/check-error/-/check-error-1.0.2.tgz",
+      "integrity": "sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=",
+      "dev": true
+    },
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@@ -297,6 +391,42 @@
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       "dev": true
     },
+    "cliui": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
+      "integrity": "sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==",
+      "dev": true,
+      "requires": {
+        "string-width": "^3.1.0",
+        "strip-ansi": "^5.2.0",
+        "wrap-ansi": "^5.1.0"
+      },
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+        "emoji-regex": {
+          "version": "7.0.3",
+          "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
+          "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA==",
+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
+          "requires": {
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+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        }
+      }
+    },
     "color-convert": {
       "version": "1.9.3",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
@@ -364,18 +494,48 @@
         "ms": "^2.1.1"
       }
     },
+    "decamelize": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
+      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=",
+      "dev": true
+    },
+    "deep-eql": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-3.0.1.tgz",
+      "integrity": "sha512-+QeIQyN5ZuO+3Uk5DYh6/1eKO0m0YmJFGNmFHGACpf1ClL1nmlV/p4gNgbl2pJGxgXb4faqo6UE+M5ACEMyVcw==",
+      "dev": true,
+      "requires": {
+        "type-detect": "^4.0.0"
+      }
+    },
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       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.3.tgz",
       "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=",
       "dev": true
     },
+    "define-properties": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/define-properties/-/define-properties-1.1.3.tgz",
+      "integrity": "sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==",
+      "dev": true,
+      "requires": {
+        "object-keys": "^1.0.12"
+      }
+    },
     "denodeify": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/denodeify/-/denodeify-1.2.1.tgz",
       "integrity": "sha1-OjYof1A05pnnV3kBBSwubJQlFjE=",
       "dev": true
     },
+    "diff": {
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz",
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+      "dev": true
+    },
     "doctrine": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-3.0.0.tgz",
@@ -432,6 +592,51 @@
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       "dev": true
     },
+    "es-abstract": {
+      "version": "1.17.5",
+      "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.17.5.tgz",
+      "integrity": "sha512-BR9auzDbySxOcfog0tLECW8l28eRGpDpU3Dm3Hp4q/N+VtLTmyj4EUN088XZWQDW/hzj6sYRDXeOFsaAODKvpg==",
+      "dev": true,
+      "requires": {
+        "es-to-primitive": "^1.2.1",
+        "function-bind": "^1.1.1",
+        "has": "^1.0.3",
+        "has-symbols": "^1.0.1",
+        "is-callable": "^1.1.5",
+        "is-regex": "^1.0.5",
+        "object-inspect": "^1.7.0",
+        "object-keys": "^1.1.1",
+        "object.assign": "^4.1.0",
+        "string.prototype.trimleft": "^2.1.1",
+        "string.prototype.trimright": "^2.1.1"
+      }
+    },
+    "es-to-primitive": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/es-to-primitive/-/es-to-primitive-1.2.1.tgz",
+      "integrity": "sha512-QCOllgZJtaUo9miYBcLChTUaHNjJF3PYs1VidD7AwiEj1kYxKeQTctLAezAOH5ZKRH0g2IgPn6KwB4IT8iRpvA==",
+      "dev": true,
+      "requires": {
+        "is-callable": "^1.1.4",
+        "is-date-object": "^1.0.1",
+        "is-symbol": "^1.0.2"
+      }
+    },
+    "es6-promise": {
+      "version": "4.2.8",
+      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.8.tgz",
+      "integrity": "sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==",
+      "dev": true
+    },
+    "es6-promisify": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/es6-promisify/-/es6-promisify-5.0.0.tgz",
+      "integrity": "sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=",
+      "dev": true,
+      "requires": {
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     "escape-string-regexp": {
       "version": "1.0.5",
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@@ -653,6 +858,24 @@
         "flat-cache": "^2.0.1"
       }
     },
+    "find-up": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+      "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+      "dev": true,
+      "requires": {
+        "locate-path": "^3.0.0"
+      }
+    },
+    "flat": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/flat/-/flat-4.1.0.tgz",
+      "integrity": "sha512-Px/TiLIznH7gEDlPXcUD4KnBusa6kR6ayRUVcnEAbreRIuhkqow/mun59BuRXwoYk7ZQOLW1ZM05ilIvK38hFw==",
+      "dev": true,
+      "requires": {
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@@ -676,12 +899,30 @@
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       "dev": true
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+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==",
+      "dev": true
+    },
     "functional-red-black-tree": {
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       "integrity": "sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc=",
       "dev": true
     },
+    "get-caller-file": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
+      "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==",
+      "dev": true
+    },
+    "get-func-name": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/get-func-name/-/get-func-name-2.0.0.tgz",
+      "integrity": "sha1-6td0q+5y4gQJQzoGY2YCPdaIekE=",
+      "dev": true
+    },
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+      "requires": {
+        "buffer-from": "^1.0.0",
+        "source-map": "^0.6.0"
+      }
+    },
     "sprintf-js": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
@@ -1335,6 +1906,48 @@
         }
       }
     },
+    "string.prototype.trimend": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/string.prototype.trimend/-/string.prototype.trimend-1.0.1.tgz",
+      "integrity": "sha512-LRPxFUaTtpqYsTeNKaFOw3R4bxIzWOnbQ837QfBylo8jIxtcbK/A/sMV7Q+OAV/vWo+7s25pOE10KYSjaSO06g==",
+      "dev": true,
+      "requires": {
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.17.5"
+      }
+    },
+    "string.prototype.trimleft": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/string.prototype.trimleft/-/string.prototype.trimleft-2.1.2.tgz",
+      "integrity": "sha512-gCA0tza1JBvqr3bfAIFJGqfdRTyPae82+KTnm3coDXkZN9wnuW3HjGgN386D7hfv5CHQYCI022/rJPVlqXyHSw==",
+      "dev": true,
+      "requires": {
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.17.5",
+        "string.prototype.trimstart": "^1.0.0"
+      }
+    },
+    "string.prototype.trimright": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/string.prototype.trimright/-/string.prototype.trimright-2.1.2.tgz",
+      "integrity": "sha512-ZNRQ7sY3KroTaYjRS6EbNiiHrOkjihL9aQE/8gfQ4DtAC/aEBRHFJa44OmoWxGGqXuJlfKkZW4WcXErGr+9ZFg==",
+      "dev": true,
+      "requires": {
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.17.5",
+        "string.prototype.trimend": "^1.0.0"
+      }
+    },
+    "string.prototype.trimstart": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/string.prototype.trimstart/-/string.prototype.trimstart-1.0.1.tgz",
+      "integrity": "sha512-XxZn+QpvrBI1FOcg6dIpxUPgWCPuNXvMD72aaRaUQv1eD4e/Qy8i/hFTe0BUmD60p/QA6bh1avmuPTfNjqVWRw==",
+      "dev": true,
+      "requires": {
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.17.5"
+      }
+    },
     "string_decoder": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
@@ -1455,6 +2068,12 @@
         "prelude-ls": "~1.1.2"
       }
     },
+    "type-detect": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
+      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
+      "dev": true
+    },
     "type-fest": {
       "version": "0.8.1",
       "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.8.1.tgz",
@@ -1472,9 +2091,9 @@
       }
     },
     "typescript": {
-      "version": "3.7.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.7.5.tgz",
-      "integrity": "sha512-/P5lkRXkWHNAbcJIiHPfRoKqyd7bsyCma1hZNUGfn20qm64T6ZBlrzprymeu918H+mB/0rIg2gGK/BXkhhYgBw==",
+      "version": "3.9.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.2.tgz",
+      "integrity": "sha512-q2ktq4n/uLuNNShyayit+DTobV2ApPEo/6so68JaD5ojvc/6GClBipedB9zNWYxRSAlZXAe405Rlijzl6qDiSw==",
       "dev": true
     },
     "uc.micro": {
@@ -1544,6 +2163,17 @@
         "yazl": "^2.2.2"
       }
     },
+    "vscode-test": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/vscode-test/-/vscode-test-1.3.0.tgz",
+      "integrity": "sha512-LddukcBiSU2FVTDr3c1D8lwkiOvwlJdDL2hqVbn6gIz+rpTqUCkMZSKYm94Y1v0WXlHSDQBsXyY+tchWQgGVsw==",
+      "dev": true,
+      "requires": {
+        "http-proxy-agent": "^2.1.0",
+        "https-proxy-agent": "^2.2.4",
+        "rimraf": "^2.6.3"
+      }
+    },
     "which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
@@ -1553,12 +2183,96 @@
         "isexe": "^2.0.0"
       }
     },
+    "which-module": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
+      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
+      "dev": true
+    },
+    "wide-align": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.3.tgz",
+      "integrity": "sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==",
+      "dev": true,
+      "requires": {
+        "string-width": "^1.0.2 || 2"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+          "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
+        },
+        "string-width": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "dev": true,
+          "requires": {
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^4.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        }
+      }
+    },
     "word-wrap": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
       "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
       "dev": true
     },
+    "wrap-ansi": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
+      "integrity": "sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==",
+      "dev": true,
+      "requires": {
+        "ansi-styles": "^3.2.0",
+        "string-width": "^3.0.0",
+        "strip-ansi": "^5.0.0"
+      },
+      "dependencies": {
+        "emoji-regex": {
+          "version": "7.0.3",
+          "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
+          "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA==",
+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        }
+      }
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -1574,6 +2288,76 @@
         "mkdirp": "^0.5.1"
       }
     },
+    "y18n": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
+      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+      "dev": true
+    },
+    "yargs": {
+      "version": "13.3.2",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.2.tgz",
+      "integrity": "sha512-AX3Zw5iPruN5ie6xGRIDgqkT+ZhnRlZMLMHAs8tg7nRruy2Nb+i5o9bwghAogtM08q1dpr2LVoS8KSTMYpWXUw==",
+      "dev": true,
+      "requires": {
+        "cliui": "^5.0.0",
+        "find-up": "^3.0.0",
+        "get-caller-file": "^2.0.1",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^3.0.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^13.1.2"
+      },
+      "dependencies": {
+        "emoji-regex": {
+          "version": "7.0.3",
+          "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
+          "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA==",
+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        }
+      }
+    },
+    "yargs-parser": {
+      "version": "13.1.2",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
+      "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      }
+    },
+    "yargs-unparser": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-1.6.0.tgz",
+      "integrity": "sha512-W9tKgmSn0DpSatfri0nx52Joq5hVXgeLiqR/5G0sZNDoLZFOr/xjBUDcShCOGNsBnEMNo1KAMBkTej1Hm62HTw==",
+      "dev": true,
+      "requires": {
+        "flat": "^4.1.0",
+        "lodash": "^4.17.15",
+        "yargs": "^13.3.0"
+      }
+    },
     "yauzl": {
       "version": "2.10.0",
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
diff --git a/package.json b/package.json
index 72cdb7e..796ff01 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "vscode-markdown-notes",
   "displayName": "VS Code Markdown Notes",
   "description": "Navigate notes with [[wiki-links]] and #tags (like Bear, Roam, etc). Use Peek Definition to preview linked notes. Quickly create new notes with a command.",
-  "version": "0.0.5",
+  "version": "0.0.6",
   "publisher": "kortina",
   "repository": {
     "url": "https://github.com/kortina/vscode-markdown-notes.git",
@@ -57,6 +57,11 @@
           ],
           "default": "uniqueFilenames",
           "description": "By default, expect 'uniqueFilenames' for every `.md` file in workspace and treat `file.md` as link to file in any subdirectory. If you expect collisions in filenames for notes (eg, `note1/note.md` `note2/note.md`) use 'relativePaths' to render links between files."
+        },
+        "vscodeMarkdownNotes.createNoteOnGoToDefinitionWhenMissing": {
+          "type": "boolean",
+          "default": true,
+          "description": "By default, when invoking `editor.action.revealDefinition` on `[[note.md]]` if `note.md` does not exist in workspace, create it. NB: Works only when `vscodeMarkdownNotes.workspaceFilenameConvention` = 'uniqueFilenames'."
         }
       }
     }
@@ -72,15 +77,25 @@
     "vscode:prepublish": "npm run compile",
     "compile": "tsc -p ./",
     "lint": "eslint -c .eslintrc.js --ext .ts src",
-    "watch": "tsc -watch -p ./"
+    "watch": "tsc -watch -p ./",
+    "pretest": "npm run compile",
+    "test": "node ./out/test/runTest.js"
   },
   "devDependencies": {
+    "@types/chai": "^4.2.11",
+    "@types/glob": "^7.1.1",
+    "@types/mocha": "^5.2.6",
     "@types/node": "^10.12.18",
     "@types/vscode": "^1.32.0",
     "@typescript-eslint/eslint-plugin": "^2.28.0",
     "@typescript-eslint/parser": "^2.28.0",
+    "chai": "^4.2.0",
+    "glob": "^7.1.4",
+    "mocha": "^6.1.4",
+    "source-map-support": "^0.5.12",
+    "typescript": "^3.8.3",
+    "vscode-test": "^1.3.0",
     "eslint": "^6.8.0",
-    "typescript": "^3.5.1",
     "vsce": "^1.75.0"
   }
 }
diff --git a/src/extension.ts b/src/extension.ts
index 82575f4..cfe7433 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -1,6 +1,7 @@
 import * as vscode from 'vscode';
 import { basename, dirname, join, normalize, relative, resolve } from 'path';
 import { existsSync, readFile, writeFileSync } from 'fs';
+const fsp = require('fs').promises;
 import {
   CompletionItemProvider,
   TextDocument,
@@ -12,18 +13,27 @@ import {
   CompletionItemKind,
   Uri,
 } from 'vscode';
+import { NoteRefsTreeDataProvider } from './treeViewReferences';
+import { debug } from 'util';
+import { create } from 'domain';
 
-function workspaceFilenameConvention(): string | undefined {
+const workspaceFilenameConvention = (): string | undefined => {
   let cfg = vscode.workspace.getConfiguration('vscodeMarkdownNotes');
   return cfg.get('workspaceFilenameConvention');
-}
-function useUniqueFilenames(): boolean {
+};
+
+const useUniqueFilenames = (): boolean => {
   return workspaceFilenameConvention() == 'uniqueFilenames';
-}
+};
 
-function useRelativePaths(): boolean {
+const useRelativePaths = (): boolean => {
   return workspaceFilenameConvention() == 'relativePaths';
-}
+};
+
+const createNoteOnGoToDefinitionWhenMissing = (): boolean => {
+  let cfg = vscode.workspace.getConfiguration('vscodeMarkdownNotes');
+  return !!cfg.get('createNoteOnGoToDefinitionWhenMissing');
+};
 
 function filenameForConvention(uri: Uri, fromDocument: TextDocument): string {
   if (useUniqueFilenames()) {
@@ -63,6 +73,85 @@ class WorkspaceTagList {
   }
 }
 
+export class ReferenceSearch {
+  // TODO/ FIXME: I wonder if instead of this just-in-time search through all the files,
+  // we should instead build the search index for all Tags and WikiLinks once on-boot
+  // and then just look in the index for the locations.
+  // In that case, we would need to implement some sort of change watcher,
+  // to know if our index needs to be updated.
+  // This is pretty brute force as it is.
+  //
+  // static TAG_WORD_SET = new Set();
+  // static STARTED_INIT = false;
+  // static COMPLETED_INIT = false;
+
+  static rangesForWordInDocumentData = (
+    queryWord: string | null,
+    data: string
+  ): Array<vscode.Range> => {
+    let ranges: Array<vscode.Range> = [];
+    if (!queryWord) {
+      return [];
+    }
+    let lines = data.split(/[\r\n]/);
+    lines.map((line, lineNum) => {
+      let charNum = 0;
+      // https://stackoverflow.com/questions/17726904/javascript-splitting-a-string-yet-preserving-the-spaces
+      let words = line.split(/(\S+\s+)/);
+      words.map((word) => {
+        // console.log(`word: ${word} charNum: ${charNum}`);
+        let spacesBefore = word.length - word.trimLeft().length;
+        let trimmed = word.trim();
+        if (trimmed == queryWord) {
+          let r = new vscode.Range(
+            new vscode.Position(lineNum, charNum + spacesBefore),
+            // I thought we had to sub 1 to get the zero-based index of the last char of this word:
+            // new vscode.Position(lineNum, charNum + spacesBefore + trimmed.length - 1)
+            // but the highlighting is off if we do that ¯\_(ツ)_/¯
+            new vscode.Position(lineNum, charNum + spacesBefore + trimmed.length)
+          );
+          ranges.push(r);
+        }
+        charNum += word.length;
+      });
+    });
+    return ranges;
+  };
+
+  static async search(contextWord: ContextWord): Promise<vscode.Location[]> {
+    let locations: vscode.Location[] = [];
+    let query: string;
+    if (contextWord.type == ContextWordType.Tag) {
+      query = `#${contextWord.word}`;
+    } else if ((contextWord.type = ContextWordType.WikiLink)) {
+      query = `[[${basename(contextWord.word)}]]`;
+    } else {
+      return [];
+    }
+    // console.log(`query: ${query}`);
+    let files = (await workspace.findFiles('**/*')).filter(
+      // TODO: parameterize extensions. Add $ to end?
+      (f) => f.scheme == 'file' && f.path.match(/\.(md|markdown)/i)
+    );
+    let paths = files.map((f) => f.path);
+    let fileBuffers = await Promise.all(paths.map((p) => fsp.readFile(p)));
+    fileBuffers.map((data, i) => {
+      let path = files[i].path;
+      // console.debug('--------------------');
+      // console.log(path);
+      // console.log(`${data}`.split(/\n/)[0]);
+      let ranges = this.rangesForWordInDocumentData(query, `${data}`);
+      ranges.map((r) => {
+        let loc = new vscode.Location(Uri.file(path), r);
+        locations.push(loc);
+      });
+    });
+
+    // console.log(locations);
+    return locations;
+  }
+}
+
 enum ContextWordType {
   Null, // 0
   WikiLink, // 1
@@ -76,6 +165,16 @@ interface ContextWord {
   range: vscode.Range | undefined;
 }
 
+const debugContextWord = (contextWord: ContextWord) => {
+  const { type, word, hasExtension, range } = contextWord;
+  console.debug({
+    type: ContextWordType[contextWord.type],
+    word: contextWord.word,
+    hasExtension: contextWord.hasExtension,
+    range: contextWord.range,
+  });
+};
+
 const NULL_CONTEXT_WORD = {
   type: ContextWordType.Null,
   word: '',
@@ -203,6 +302,7 @@ class MarkdownDefinitionProvider implements vscode.DefinitionProvider {
     // console.debug('provideDefinition');
 
     const contextWord = getContextWord(document, position);
+    // debugContextWord(contextWord);
     if (contextWord.type != ContextWordType.WikiLink) {
       // console.debug('getContextWord was not WikiLink');
       return [];
@@ -243,9 +343,105 @@ class MarkdownDefinitionProvider implements vscode.DefinitionProvider {
       }
     }
 
+    // else, create the file
+    if (files.length == 0) {
+      const path = MarkdownDefinitionProvider.createMissingNote(contextWord);
+      if (path !== undefined) {
+        files.push(vscode.Uri.parse(`file://${path}`));
+      }
+    }
+
     const p = new vscode.Position(0, 0);
     return files.map((f) => new vscode.Location(f, p));
   }
+
+  static createMissingNote = (contextWord: ContextWord): string | undefined => {
+    // don't create new files if contextWord is a Tag
+    if (contextWord.type != ContextWordType.WikiLink) {
+      return;
+    }
+    let cfg = vscode.workspace.getConfiguration('vscodeMarkdownNotes');
+    if (!createNoteOnGoToDefinitionWhenMissing()) {
+      return;
+    }
+    const filename = vscode.window.activeTextEditor?.document.fileName;
+    if (filename !== undefined) {
+      if (!useUniqueFilenames()) {
+        vscode.window.showWarningMessage(
+          `createNoteOnGoToDefinitionWhenMissing only works when vscodeMarkdownNotes.workspaceFilenameConvention = 'uniqueFilenames'`
+        );
+        return;
+      }
+      // add an extension if one does not exist
+      let mdFilename = contextWord.word.match(/\.(md|markdown)$/i)
+        ? contextWord.word
+        : `${contextWord.word}.md`;
+      // by default, create new note in same dir as the current document
+      // TODO: could convert this to an option (to, eg, create in workspace root)
+      const path = `${dirname(filename)}/${mdFilename}`;
+      const title = titleCaseFilename(contextWord.word);
+      writeFileSync(path, `# ${title}\n\n`);
+      return path;
+    }
+  };
+}
+
+const capitalize = (word: string): string => {
+  if (!word) {
+    return word;
+  }
+  return `${word[0].toUpperCase()}${word.slice(1)}`;
+};
+
+export const titleCase = (sentence: string): string => {
+  if (!sentence) {
+    return sentence;
+  }
+  const chicagoStyleNoCap = `
+a aboard about above across after against along amid among an and anti around as at before behind
+below beneath beside besides between beyond but by concerning considering despite down during except
+excepting excluding following for from in inside into like minus near of off on onto opposite or
+outside over past per plus regarding round save since so than the through to toward towards under
+underneath unlike until up upon versus via with within without yet
+  `.split(/\s/);
+  let words = sentence.split(/\s/);
+  return words
+    .map((word, i) => {
+      if (i == 0 || i == words.length - 1) {
+        return capitalize(word);
+      } else if (chicagoStyleNoCap.includes(word.toLocaleLowerCase())) {
+        return word;
+      } else {
+        return capitalize(word);
+      }
+    })
+    .join(' ');
+};
+
+export const titleCaseFilename = (filename: string): string => {
+  if (!filename) {
+    return filename;
+  }
+  return titleCase(
+    filename
+      .replace(/\.(md|markdown)$/, '')
+      .replace(/[-_]/gi, ' ')
+      .replace(/\s+/, ' ')
+  );
+};
+
+class MarkdownReferenceProvider implements vscode.ReferenceProvider {
+  public provideReferences(
+    document: TextDocument,
+    position: Position,
+    context: vscode.ReferenceContext,
+    token: CancellationToken
+  ): vscode.ProviderResult<vscode.Location[]> {
+    // console.debug('MarkdownReferenceProvider.provideReferences');
+    const contextWord = getContextWord(document, position);
+    // debugContextWord(contextWord);
+    return ReferenceSearch.search(contextWord);
+  }
 }
 
 function newNote(context: vscode.ExtensionContext) {
@@ -327,6 +523,10 @@ export function activate(context: vscode.ExtensionContext) {
     vscode.languages.registerDefinitionProvider(md, new MarkdownDefinitionProvider())
   );
 
+  context.subscriptions.push(
+    vscode.languages.registerReferenceProvider(md, new MarkdownReferenceProvider())
+  );
+
   let newNoteDisposable = vscode.commands.registerCommand('vscodeMarkdownNotes.newNote', newNote);
   context.subscriptions.push(newNoteDisposable);
 
@@ -334,4 +534,8 @@ export function activate(context: vscode.ExtensionContext) {
   // console.log(`WorkspaceTagList.STARTED_INIT.1: ${WorkspaceTagList.STARTED_INIT}`);
   WorkspaceTagList.initSet();
   // console.log(`WorkspaceTagList.STARTED_INIT.2: ${WorkspaceTagList.STARTED_INIT}`);
+
+  // const treeView = vscode.window.createTreeView('vscodeMarkdownNotesReferences', {
+  //   treeDataProvider: new NoteRefsTreeDataProvider(vscode.workspace.rootPath || null),
+  // });
 }
diff --git a/src/test/runTest.ts b/src/test/runTest.ts
new file mode 100644
index 0000000..5cfdbcf
--- /dev/null
+++ b/src/test/runTest.ts
@@ -0,0 +1,23 @@
+import * as path from 'path';
+
+import { runTests } from 'vscode-test';
+
+async function main() {
+  try {
+    // The folder containing the Extension Manifest package.json
+    // Passed to `--extensionDevelopmentPath`
+    const extensionDevelopmentPath = path.resolve(__dirname, '../../');
+
+    // The path to the extension test script
+    // Passed to --extensionTestsPath
+    const extensionTestsPath = path.resolve(__dirname, './suite/index');
+
+    // Download VS Code, unzip it and run the integration test
+    await runTests({ extensionDevelopmentPath, extensionTestsPath });
+  } catch (err) {
+    console.error('Failed to run tests');
+    process.exit(1);
+  }
+}
+
+main();
diff --git a/src/test/suite/extension.test.ts b/src/test/suite/extension.test.ts
new file mode 100644
index 0000000..d796abf
--- /dev/null
+++ b/src/test/suite/extension.test.ts
@@ -0,0 +1,38 @@
+import * as assert from 'assert';
+var chai = require('chai');
+var expect = chai.expect; // Using Expect style
+
+// You can import and use all API from the 'vscode' module
+// as well as import your extension to test it
+import * as vscode from 'vscode';
+// import * as myExtension from '../../extension';
+import { ReferenceSearch, titleCaseFilename } from '../../extension';
+
+suite('titleCase', () => {
+  test('titleCaseFilename', () => {
+    expect(titleCaseFilename('the-heat-is-on.md')).to.equal('The Heat Is On');
+    expect(titleCaseFilename('in-the-heat-of-the-night.md')).to.equal('In the Heat of the Night');
+  });
+});
+
+let document = `line0 word1
+line1 word1 word2 
+  [[test.md]]  #tag #another_tag  <- link at line2, chars 2-12
+^ tags at line2 chars 15-19 and 21-32
+[[test.md]] <- link at line4, chars 0-11
+[[demo.md]] <- link at line5, chars 0-11
+#tag word`; // line 5, chars 0-3
+suite('ReferenceSearch', () => {
+  // vscode.window.showInformationMessage('Start ReferenceSearch.');
+
+  test('rangesForWordInDocumentData', () => {
+    expect(ReferenceSearch.rangesForWordInDocumentData('[[test.md]]', document)).to.eql([
+      new vscode.Range(2, 2, 2, 13),
+      new vscode.Range(4, 0, 4, 11),
+    ]);
+    expect(ReferenceSearch.rangesForWordInDocumentData('#tag', document)).to.eql([
+      new vscode.Range(2, 15, 2, 19),
+      new vscode.Range(6, 0, 6, 4),
+    ]);
+  });
+});
diff --git a/src/test/suite/index.ts b/src/test/suite/index.ts
new file mode 100644
index 0000000..38bc711
--- /dev/null
+++ b/src/test/suite/index.ts
@@ -0,0 +1,38 @@
+import * as path from 'path';
+import * as Mocha from 'mocha';
+import * as glob from 'glob';
+
+export function run(): Promise<void> {
+  // Create the mocha test
+  const mocha = new Mocha({
+    ui: 'tdd',
+  });
+  mocha.useColors(true);
+
+  const testsRoot = path.resolve(__dirname, '..');
+
+  return new Promise((c, e) => {
+    glob('**/**.test.js', { cwd: testsRoot }, (err, files) => {
+      if (err) {
+        return e(err);
+      }
+
+      // Add files to the test suite
+      files.forEach((f) => mocha.addFile(path.resolve(testsRoot, f)));
+
+      try {
+        // Run the mocha test
+        mocha.run((failures) => {
+          if (failures > 0) {
+            e(new Error(`${failures} tests failed.`));
+          } else {
+            c();
+          }
+        });
+      } catch (err) {
+        console.error(err);
+        e(err);
+      }
+    });
+  });
+}
diff --git a/src/treeViewReferences.ts b/src/treeViewReferences.ts
new file mode 100644
index 0000000..c000e28
--- /dev/null
+++ b/src/treeViewReferences.ts
@@ -0,0 +1,54 @@
+import * as vscode from 'vscode';
+import * as fs from 'fs';
+import * as path from 'path';
+
+export class NoteRefsTreeDataProvider implements vscode.TreeDataProvider<NoteRefTreeItem> {
+  constructor(private workspaceRoot: string | null) {}
+
+  getTreeItem(element: NoteRefTreeItem): vscode.TreeItem {
+    return element;
+  }
+
+  getChildren(element?: NoteRefTreeItem): Thenable<NoteRefTreeItem[]> {
+    if (!this.workspaceRoot) {
+      vscode.window.showInformationMessage('No refs in empty workspace');
+      return Promise.resolve([]);
+    }
+
+    if (!element) {
+      return Promise.resolve([
+        new NoteRefTreeItem(`root`, vscode.TreeItemCollapsibleState.Expanded),
+      ]);
+    } else if (element.label == `root`) {
+      return Promise.resolve([
+        new NoteRefTreeItem(`child-1`, vscode.TreeItemCollapsibleState.None),
+        new NoteRefTreeItem(`child-2`, vscode.TreeItemCollapsibleState.None),
+        new NoteRefTreeItem(`child-3`, vscode.TreeItemCollapsibleState.None),
+      ]);
+    } else {
+      return Promise.resolve([]);
+    }
+  }
+}
+
+class NoteRefTreeItem extends vscode.TreeItem {
+  constructor(
+    public readonly label: string,
+    public readonly collapsibleState: vscode.TreeItemCollapsibleState
+  ) {
+    super(label, collapsibleState);
+  }
+
+  get tooltip(): string {
+    return `${this.label}`;
+  }
+
+  get description(): string {
+    return this.label;
+  }
+
+  iconPath = {
+    light: path.join(__filename, '..', '..', 'resources', 'light', 'dependency.svg'),
+    dark: path.join(__filename, '..', '..', 'resources', 'dark', 'dependency.svg'),
+  };
+}
diff --git a/test/sub/demo.md b/test/sub/demo.md
index 3790c54..0d80867 100644
--- a/test/sub/demo.md
+++ b/test/sub/demo.md
@@ -1,7 +1,15 @@
 # Demo
 
-`⌥F12` (Peek Definition) to preview Wiki Link inline
+`⌥F12` (Peek Definition) to preview Wiki Link inline [[sub.md]] [[test.md]] // `cmd+k cmd+k`
 
-`F12` (Go to Definition) to open Wiki Link
+`F12` (Go to Definition) to open Wiki Link [[sub.md]] [[test.md]] // `ctrl+]`
+`F12` (Go to Definition) createNoteOnGoToDefinitionWhenMissing [[in-the-heat-of-the-night.md]] // `ctrl+]`
 
-[[sub.md]]
+(Peek References) for Wiki Link [[test.md]] // `cmd+k cmd+n`
+(Peek References) for Tag #tag // `cmd+k cmd+n`
+
+`⇧F12` (Go To References) for Wiki Link [[sub.md]]
+`⇧F12` (Go To References) for Tag #tag
+
+`⇧⌥F12` (Find All References) for Wiki Link [[sub.md]]
+`⇧⌥F12` (Find All References) for Tag #tag
\ No newline at end of file
diff --git a/test/sub/extension-test-mirror.md b/test/sub/extension-test-mirror.md
new file mode 100644
index 0000000..6414e8a
--- /dev/null
+++ b/test/sub/extension-test-mirror.md
@@ -0,0 +1,7 @@
+line0 word1
+line1 word1 word2 
+  [[test.md]]  #tag #another_tag  <- link at line2, chars 2-12
+^ tags at line2 chars 15-19 and 21-32
+[[test.md]] <- link at line4, chars 0-11
+[[demo.md]] <- link at line5, chars 0-11
+#tag word
\ No newline at end of file
diff --git a/test/sub/sub.md b/test/sub/sub.md
index b825148..7584eb7 100644
--- a/test/sub/sub.md
+++ b/test/sub/sub.md
@@ -1,3 +1,5 @@
 # sub
 
 [[sub2.md]]
+
+#tag
diff --git a/test/sub/sub2.md b/test/sub/sub2.md
index b98b230..0c756d5 100644
--- a/test/sub/sub2.md
+++ b/test/sub/sub2.md
@@ -1,3 +1,5 @@
 # sub2
 
-[[demo.md]]
+[[demo.md]] [[sub.md]] [[test.md]]
+
+#another_tag