by Koehler C.B, Cramer G.L, Irons S.M, Schepers J.S, Burnside O.C
Published in Farm Ranch and Home Quarterly Nebraska Agricultural Experiment Station (1980)

by Schneider G.L, Koehler C.B, Schepers J.S, Burnside O.C
Published in Weed science (01.05.1982)