http://lod.ehri-project-test.eu/isCopyOfRelations/d5fdc251-4ac7-11f0-9849-899181ace71c an entity of type: IsCopyOfRelation
"Documentation of the Headquarters of the Security Service and the Police in Reval [Tallinn], 1940 - 1944" was copied from "Eesti Julgeolekupolitsei ja SD Komandör Eestis"