Froelich, RonaldHodson, A. C. (Alexander Carlton), 1906-1996Schneider, A.E.Duncan, D.P.2010-01-202010-01-201955-10-15Froelich, R., Hodson, A.C., Schneider, A.E. and Duncan D.P., (1955), "Influence of Aspen Defoliation by the Forest Tent Caterpillar in Minnesota of the Radial Growth of Associated Balsam Fir", Minnesota Forestry Notes 45, School of Forestry, University of Minnesota0099-4332https://hdl.handle.net/11299/56611Published as Sci. Jour. Ser. Paper No. 3421 of the Minn. Agr. Expt. Sta.en-USforests and forestryMinnesotaresearchReport