{"id":"001070762","type":"book","title":"Novgorod fortifications through time and history","publisher":"Schmidt-Römhild","publisher-place":"Lübeck","pages":"629-638","container-title":"Lübecker Kolloquium zur Stadtarchäologie im Hanseraum. 7. Die Befestigungen","author":[{"family":"Petrov","given":"Mikhail I."}],"issued":{"raw":"2010"}}