{"id":"000030604","type":"book","title":"The roles of pine and spruce in the forest history of Minnesota and adjacent areas. - Washington, D.C","container-title":"Ecology ; 49.1968, no. 5, S. 937-955 : 6 Ill. ; 2 tab","author":[{"family":"Wright","given":"H.E."}],"issued":{"raw":"1968"}}