http://lod.ehri-project-test.eu/isCopyOfRelations/503511e2-1c19-11ef-983a-9d9be3570543 an entity of type: IsCopyOfRelation
"Documentation from the Croatian State Archives: Branch Office of the Ustasha Intelligence Service in Zagreb - Jewish Section, 1941-1942" was copied from "Ravnateljstvo ustaškog redarstva. Židovski odsjek."