Haygreen, John G.2010-02-162010-02-161970-10-15Haygreen, J.G., (1970), "The Strength of Aspen Studs", Minnesota Forestry Research Notes 221, School of Forestry, University of Minnesota0544-3555https://hdl.handle.net/11299/57972Published as Scientific Journal Paper Series No. 7359 of the Minnesota Agricultural Experiment Station.en-USforests and forestryMinnesotaresearchReport