{"id":"001070731","type":"book","title":"The development of the fortifications of the city of Zutphen (Netherlands)","publisher":"Schmidt-Römhild","publisher-place":"Lübeck","pages":"163-186","container-title":"Lübecker Kolloquium zur Stadtarchäologie im Hanseraum. 7. Die Befestigungen","author":[{"family":"Groothedde","given":"Michel"}],"issued":{"raw":"2010"}}