{"id":"001029007","type":"book","title":"Contribution to the question of chipped stone industry","publisher":"Archaeopress","publisher-place":"Oxford","pages":"215-230","container-title":"The northeast frontier of Bell Beakers. Proceedings of the symposium held at the Adam Mickiewicz University, Poznań (Poland), May 26-29, 2002","author":[{"family":"Kopacz","given":"Jerzy"}],"issued":{"raw":"2003"}}