{"id":"001274160","type":"book","title":"Fragment grotu harpuna kościanego z okolic Bydgoszczy na tle znalezisk grotów harpunów jednorzędowych z Niżu Polskiego","pages":"169-186","container-title":"Pomorania Antiqua, 21 (2006","author":[{"family":"Olszewski","given":"Piotr A."}],"issued":{"raw":"2006"}}