{"id":"000028138","type":"book","title":"Erhaltungsformen der in den Mooren gefundenen Baumreste.- Oldenburg","container-title":"Oldenburger Jahrbuch; 59. 1960, Teil 2, S. 21-49: zahlr. Ill","author":[{"family":"Hayen","given":"Hayo 1923-1991."}],"issued":{"raw":"1960"}}