{"id":"001001775","type":"book","title":"Stadtbefestigungen des Mittelalters in Skandinavien","publisher":"Böhlau","publisher-place":"Köln/Weimar/Wien","pages":"211-218","container-title":"Die Befestigung der mittelalterlichen Stadt","author":[{"family":"Ericsson","given":"Ingolf."}],"issued":{"raw":"1997"}}