diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/NIAM/ordered_sparql_insert_niam.sparql b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/NIAM/ordered_sparql_insert_niam.sparql
index 2383841..98327bb 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/NIAM/ordered_sparql_insert_niam.sparql
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/NIAM/ordered_sparql_insert_niam.sparql
@@ -44,6 +44,25 @@ WHERE {
     ?collection aocat:has_ARIADNE_subject ?archeologicalResourceType .
 };
 
+PREFIX aocat: <https://www.ariadne-infrastructure.eu/resource/ao/cat/1.1/>
+PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
+PREFIX ariadneplus: <https://ariadne-infrastructure.eu/aocat/>
+
+INSERT {
+    GRAPH <https://ariadne-infrastructure.eu/api_________::ariadne_plus::niam::amb> {
+        ?record aocat:has_creator ?creator .
+    }
+}
+USING <https://ariadne-infrastructure.eu/api_________::ariadne_plus::niam::amb>
+WHERE {
+	?record aocat:is_part_of ?collection .
+    ?collection aocat:has_creator ?creator .
+    MINUS {
+    ?record aocat:is_part_of ?collection .
+    ?record aocat:has_creator ?x .
+    }
+};
+
 PREFIX aocat: <https://www.ariadne-infrastructure.eu/resource/ao/cat/1.1/>
 PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
 INSERT {