{"id":"001467951","type":"book","title":"Der älteste Pflug der Welt: in Deutschland","publisher":"[s.n.]","publisher-place":"Hannover","pages":"83-91","container-title":"Natur und Volk ;, 64. Jg. Heft 3.1934","author":[{"family":"Friesen","given":"Jacob"}],"issued":{"raw":"1934"}}