{"id":"001227786","type":"book","title":"Helenów, st. 1, gm. Szczawin Kościelny, woj. mazowieckie. Osada z wczesnej fazy kultury pucharów lejkowatych","pages":"159-186","container-title":"Prace i Materiały, Seria Archeologiczna, 41 (1999-2001","author":[{"family":"Papiernik","given":"Piotr"}],"issued":{"raw":"1999"}}