{"id":"001250123","type":"book","title":"Formy opevnění na hradech piskovcového podloží. (Befestigungsformen der Burgen auf dem Sandsteinuntergrund)","pages":"51-59","container-title":"Archaeologia Historica, 27 (2002","author":[{"family":"Gabriel","given":"František"}],"issued":{"raw":"2002"}}