{"id":"001184748","type":"book","title":"Der Graben der mittelalterlichen Burg- und Schlossanlage Broich in Mülheim an der Ruhr","publisher":"Rheinland-Verlag","pages":"121-122","container-title":"Archäologie im Rheinland, 1990 (1990","author":[{"family":"Koepke","given":"Hans"}],"issued":{"raw":"1990"}}