diff --git a/components/Source.vue b/components/Source.vue
index 905ad5ad..084d3548 100644
--- a/components/Source.vue
+++ b/components/Source.vue
@@ -51,6 +51,11 @@
                     {{p}}
                 </span>
             </li>
+            <li class="list-inline-item" v-if="source.key">
+                <span class="badge badge-primary">
+                    <T>sources.submit.key</T>: {{source.key}}
+                </span>
+            </li>
         </ul>
         <ul v-if="source.fragments.length">
             <li v-for="fragment in source.fragments">
diff --git a/components/SourceSubmitForm.vue b/components/SourceSubmitForm.vue
index bd906699..3916c97c 100644
--- a/components/SourceSubmitForm.vue
+++ b/components/SourceSubmitForm.vue
@@ -77,6 +77,12 @@
                     <input type="url" id="link" class="form-control" v-model="form.link"
                            maxlength="255"/>
                 </div>
+                <div class="form-group" v-if="$isGranted('sources')">
+                    <label for="key"><T>sources.submit.key</T></label>
+                    <input type="text" id="key" class="form-control" v-model="form.key"
+                           maxlength="255"/>
+                    <p class="small text-muted"><T>sources.submit.keyInfo</T></p>
+                </div>
                 <div class="alert alert-info" v-if="form.base">
                     <Icon v="info-circle"/>
                     <T>nouns.editing</T>
@@ -110,6 +116,7 @@
                     fragments: [],
                     comment: '',
                     link: '',
+                    key: null,
                     base: null,
                 },
 
@@ -136,6 +143,7 @@
                     fragments: [],
                     comment: '',
                     link: '',
+                    key: null,
                     base: null,
                 }
             },
@@ -150,6 +158,7 @@
                     fragments: source.fragments,
                     comment: source.comment,
                     link: source.link,
+                    key: source.key,
                     base: source.id,
                 }
                 this.afterSubmit = false;
diff --git a/locale/en/translations.suml b/locale/en/translations.suml
index b6c0632e..19089794 100644
--- a/locale/en/translations.suml
+++ b/locale/en/translations.suml
@@ -94,6 +94,9 @@ sources:
         thanks: 'Thanks for contributing!'
         another: 'Submit another one'
         moderation: 'Submissions will have to get approved before getting published.'
+        key: 'Key'
+        keyInfo: 'Identifier for linking sources between language versions and linking with the dictionary'
+
 
 nouns:
     header: 'Dictionary'
diff --git a/locale/es/translations.suml b/locale/es/translations.suml
index 34a1436a..2fa30534 100644
--- a/locale/es/translations.suml
+++ b/locale/es/translations.suml
@@ -94,6 +94,8 @@ sources:
         thanks: '¡Gracias por contribuir!'
         another: 'Enviar otro'
         moderation: 'Los envíos deben ser aprobados antes de ser publicados.'
+        key: 'Key'  # TODO
+        keyInfo: 'Identifier for linking sources between language versions and linking with the dictionary'  # TODO
 
 nouns:
     header: 'Diccionario'
diff --git a/locale/pl/translations.suml b/locale/pl/translations.suml
index 7b04f1b4..0fe6e4e4 100644
--- a/locale/pl/translations.suml
+++ b/locale/pl/translations.suml
@@ -193,6 +193,8 @@ sources:
         thanks: 'Dziękujemy za zgłoszenie!'
         another: 'Zgłoś kolejne źródło'
         moderation: 'Propozycje będą musiały zostać zatwierdzone przed opublikowaniem.'
+        key: 'Klucz'
+        keyInfo: 'Identyfikator do łączenia tekstów między wersjami językowymi i łączenia ze słownikiem'
 
 nouns:
     header: 'Słowniki'
diff --git a/locale/zh/translations.suml b/locale/zh/translations.suml
index b24c386c..2748156a 100644
--- a/locale/zh/translations.suml
+++ b/locale/zh/translations.suml
@@ -92,6 +92,8 @@ sources:
         thanks: '感謝您的貢獻！'
         another: '提交另一個'
         moderation: '提交的內容必須先獲得批准才能發布。'
+        key: 'Key'  # TODO
+        keyInfo: 'Identifier for linking sources between language versions and linking with the dictionary'  # TODO
 
 nouns:
     header: '字典'
diff --git a/migrations/017-source-key.sql b/migrations/017-source-key.sql
new file mode 100644
index 00000000..d4e09c10
--- /dev/null
+++ b/migrations/017-source-key.sql
@@ -0,0 +1,5 @@
+-- Up
+
+ALTER TABLE sources ADD COLUMN key TEXT NULL DEFAULT NULL;
+
+-- Down
diff --git a/server/routes/sources.js b/server/routes/sources.js
index d909d3d5..859f51df 100644
--- a/server/routes/sources.js
+++ b/server/routes/sources.js
@@ -44,11 +44,11 @@ router.get('/sources/:id', async (req, res) => {
 router.post('/sources/submit', async (req, res) => {
     const id = ulid();
     await req.db.get(SQL`
-        INSERT INTO sources (id, locale, pronouns, type, author, title, extra, year, fragments, comment, link, submitter_id, base_id)
+        INSERT INTO sources (id, locale, pronouns, type, author, title, extra, year, fragments, comment, link, key, submitter_id, base_id)
         VALUES (
             ${id}, ${req.config.locale}, ${req.body.pronouns.join(';')},
             ${req.body.type}, ${req.body.author}, ${req.body.title}, ${req.body.extra}, ${req.body.year},
-            ${req.body.fragments.join('@').replace(/\n/g, '|')}, ${req.body.comment}, ${req.body.link},
+            ${req.body.fragments.join('@').replace(/\n/g, '|')}, ${req.body.comment}, ${req.body.link}, ${req.body.key || null},
             ${req.user ? req.user.id : null}, ${req.body.base}  
         )
     `);
diff --git a/src/classes.js b/src/classes.js
index 2f0fadbd..4ecee205 100644
--- a/src/classes.js
+++ b/src/classes.js
@@ -99,7 +99,7 @@ function clone(mainObject) {
 }
 
 export class Source {
-    constructor ({id, pronouns, type, author, title, extra, year, fragments = '', comment = null, link = null, submitter = null, approved, base_id = null,}) {
+    constructor ({id, pronouns, type, author, title, extra, year, fragments = '', comment = null, link = null, key = null, submitter = null, approved, base_id = null,}) {
         this.id = id;
         this.pronouns = pronouns ? pronouns.split(';') : [];
         this.type = type;
@@ -110,6 +110,7 @@ export class Source {
         this.fragments = fragments ? fragments.replace(/\|/g, '\n').split('@') : [];
         this.comment = comment;
         this.link = link;
+        this.key = key;
         this.submitter = submitter;
         this.approved = approved;
         this.base_id = base_id;