diff --git a/dmp-backend/web/src/main/resources/config/reference-type.yml b/dmp-backend/web/src/main/resources/config/reference-type.yml
index b072b15e1..3f39364e5 100644
--- a/dmp-backend/web/src/main/resources/config/reference-type.yml
+++ b/dmp-backend/web/src/main/resources/config/reference-type.yml
@@ -78,6 +78,6 @@ reference-type:
       - code: tag
         dataType: Text
       - code: uri
-        dataType: text
+        dataType: Text
   taxonomy:
     fields:
\ No newline at end of file
diff --git a/dmp-frontend/src/app/core/query/reference-search.lookup.ts b/dmp-frontend/src/app/core/query/reference-search.lookup.ts
new file mode 100644
index 000000000..74d36da23
--- /dev/null
+++ b/dmp-frontend/src/app/core/query/reference-search.lookup.ts
@@ -0,0 +1,12 @@
+import { Lookup } from "@common/model/lookup";
+import { ReferenceType } from "../common/enum/reference-type";
+
+export class ReferenceSearchLookup extends Lookup{
+	like: string;
+	type: ReferenceType;
+	key: string;
+
+	constructor() {
+		super();
+	}
+}
\ No newline at end of file