diff --git a/API.md b/API.md
index 2045fa5..7cde234 100644
--- a/API.md
+++ b/API.md
@@ -73,6 +73,12 @@ Get complete entries with metadata, document list and link list.
       "link": "D51301"
     }
   ]
+  "backlinks": [
+    {
+      "lid": "7",
+      "link": "D1234"
+    }
+  ]
 }
 ```
 
@@ -128,6 +134,12 @@ Get complet entry with metadata, document list and link list and raw field names
       "link": "D51301"
     }
   ]
+  "backlinks": [
+    {
+      "lid": "7",
+      "link": "D1234"
+    }
+  ]
 }
 ```