{"id":"001016572","type":"book","title":"Ze studiów nad siedzibami obronnymi północno-wschodniego pogranicza Śląska w 13-17 w","publisher-place":"Wrocław","pages":"139-187","container-title":"Studia archeologiczne : 24","author":[{"family":"Piekalski","given":"Jerzy"}],"issued":{"raw":"1993"}}