Pauley, S.S.Johnson, A.G.Santamour, F.S. Jr.2010-02-102010-02-101963-07-15Pauley, S.S., Johnson, A.G. and Santamour, F.S., Jr., (1963), "Results of Aspen Screening Tests: II. Seed Sources of European Aspen (Populus tremula Linnaeus)", Minnesota Forestry Notes 137, School of Forestry, University of Minnesota0099-4332https://hdl.handle.net/11299/57427Published as Scientific Journal Paper Series No. 5172 of the Minnesota Agricultural Experiment Station.en-USforests and forestryMinnesotaresearchReport