diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/CYI/ordered_sparql_insert_CYI_collection.sparql b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/CYI/ordered_sparql_insert_CYI_collection.sparql
new file mode 100644
index 0000000..e69de29
diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/NARA/ordered_sparql_insert_nara.sparql b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/NARA/ordered_sparql_insert_nara.sparql
index 8825c71..98a7055 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/NARA/ordered_sparql_insert_nara.sparql
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrich/NARA/ordered_sparql_insert_nara.sparql
@@ -272,6 +272,35 @@ GRAPH <https://ariadne-infrastructure.eu/api_________::ariadne_plus::nara::field
    }
 };
 
+PREFIX aocat: <https://www.ariadne-infrastructure.eu/resource/ao/cat/1.1/>
+PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
+PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
+PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+PREFIX owl: <http://www.w3.org/2002/07/owl#>
+PREFIX ariadneplus: <https://ariadne-infrastructure.eu/aocat/>
+PREFIX time: <http://www.w3.org/2006/time#>
+PREFIX periodo: <http://n2t.net/ark:/99152/p0v#>
+INSERT {
+ GRAPH <https://ariadne-infrastructure.eu/ariadneplus::nara::periodoplus> {
+     ?temporal aocat:has_period ?periodO .
+     ?temporal aocat:from ?temporalFrom .
+     ?temporal aocat:until ?temporalUntil .
+ }
+}
+WHERE {
+GRAPH <https://ariadne-infrastructure.eu/api_________::ariadne_plus::nara::fieldworkreport> {
+       ?temporal aocat:has_native_period ?native_period .
+        ?native_period skos:prefLabel ?native_label .
+        optional {
+            GRAPH <https://ariadne-infrastructure.eu/ariadneplus::nara::periodo> {
+                ?periodO skos:altLabel ?native_label .
+                ?periodO time:intervalStartedBy / time:hasDateTimeDescription / time:year ?temporalFrom .
+                ?periodO time:intervalFinishedBy / time:hasDateTimeDescription / time:year ?temporalUntil .
+            }
+       }
+   }
+};
+
 PREFIX  skos: <http://www.w3.org/2004/02/skos/core#>
 PREFIX  aocat: <https://www.ariadne-infrastructure.eu/resource/ao/cat/1.1/>
 INSERT {