{"id":"001251173","type":"book","title":"Vznik a premeny hraníc Piastovského Pol'ska. (Entstehung und Änderungen der Grenzen von Piastischen Polen)","pages":"67-75","container-title":"Archaeologia Historica, 29 (2004","author":[{"family":"Grzesik","given":"Ryszard"}],"issued":{"raw":"2004"}}