by Shearer M.N, Vomicil J
Published in ASAE publication (USA). no. 23-81 (1981)

by Boggess W.G, Jones J.W, Swaney D.P, Lynne G.D
Published in ASAE publication (USA). no. 23-81 (1981)

by Jensen M.E
Published in ASAE publication (USA). no. 23-81 (1981)

by Boesch B.E, Humpherys A.S, Young D
Published in ASAE publication (USA). no. 23-81 (1981)

by Burt C.M, Lord J.M. Jr
Published in ASAE publication (USA). no. 23-81 (1981)

by Fischbach P.E
Published in ASAE publication (USA). no. 23-81 (1981)

by Wright J.L
Published in ASAE publication (USA). no. 23-81 (1981)

by McKenzie R.H, Chanasyk D.S
Published in ASAE publication (USA). no. 23-81 (1981)

by Lambert J.R, Doty C.W, Quisenberry V.L
Published in ASAE publication (USA). no. 23-81 (1981)

by Rhoades J.D, Corwin D.L, Hoffman G.J
Published in ASAE publication (USA). no. 23-81 (1981)

by Harrington G.J, Heermann D.F
Published in ASAE publication (USA). no. 23-81 (1981)

by Powell N.L, Ross B.B, Wright F.S, Jones G.D, Shanholtz V.O
Published in ASAE publication (USA). no. 23-81 (1981)

by Crough C.E, Hart W.E, Jardine G.D, Brase R.J
Published in ASAE publication (USA). no. 23-81 (1981)

by Westensen G.L, Hanson T.L
Published in ASAE publication (USA). no. 23-81 (1981)

by Lyford G, Schild N
Published in ASAE publication (USA). no. 23-81 (1981)

by English M, Glenn M, VanSickle J
Published in ASAE publication (USA). no. 23-81 (1981)