{"id":"001173363","type":"book","title":"Surowce skalne wczesnośredniowiecznego Wolina. Die Gesteinrohstoffe im frühmittelalterlichen Wolin","pages":"47-67","container-title":"Materiały Zachodniopomorskie, 34 (1988","author":[{"family":"Skoczylas","given":"Janusz"}],"issued":{"raw":"1988"}}