{"id":"001420404","type":"book","title":"New research at Riņņukalns, a Neolithic freshwater shell midden in northern Latvia","publisher":"Antiquity Publ.","publisher-place":"Gloucester, Engl","pages":"715-732","container-title":"Antiquity, 88,339 (2014","author":[{"family":"Bērziņš","given":"Vaaldis"}],"issued":{"raw":"2013"}}