{"id":"001259796","type":"book","title":"Fizykochemiczne metody analizy pozostałości pradziejowego dziegciarstwa. (Methods of physicochemical analysis of the neolithic wood pitch)","pages":"13-27","container-title":"Archeologia Polski, 34,1/2 (1989","author":[{"family":"Langer","given":"Jerzy J."}],"issued":{"raw":"1989"}}