{"id":"001070779","type":"book","title":"Visby's fortifications between 1100 and 1700","publisher":"Schmidt-Römhild","publisher-place":"Lübeck","pages":"765-780","container-title":"Lübecker Kolloquium zur Stadtarchäologie im Hanseraum. 7. Die Befestigungen","author":[{"family":"Westholm","given":"Gun"}],"issued":{"raw":"2010"}}