{"id":"000030066","type":"book","title":"Old and new datings of swedish ice lakes and the thermals of Bölling and Alleröd. - Stockholm","container-title":"Geologiska Föreningens förhandlingar ; 79.1957, h. 1, S. 93- 100 : 3 Ill","author":[{"family":"Geer","given":"Ebba Hult de"}],"issued":{"raw":"1957"}}