{"id":"001001761","type":"book","title":"Erscheinungsformen der Stadtbefestigung","publisher":"Böhlau","publisher-place":"Köln/Weimar/Wien","pages":"3-25","container-title":"Die Befestigung der mittelalterlichen Stadt","author":[{"family":"Untermann","given":"Matthias 1956-"}],"issued":{"raw":"1997"}}