{"id":"001001765","type":"book","title":"Karolingisch-ottonische Stadtbefestigungen in der Germania Libera","publisher":"Böhlau","publisher-place":"Köln/Weimar/Wien","pages":"61-77","container-title":"Die Befestigung der mittelalterlichen Stadt","author":[{"family":"Melzer","given":"Walter 1955-"}],"issued":{"raw":"1997"}}