{"id":"001001762","type":"book","title":"Fragestellungen und Probleme der archäologischen Erforschung mittelalterlicher Stadtbefestigungen","publisher":"Böhlau","publisher-place":"Köln/Weimar/Wien","pages":"27-32","container-title":"Die Befestigung der mittelalterlichen Stadt","author":[{"family":"Isenberg","given":"Gabriele."}],"issued":{"raw":"1997"}}