by Shamov, N.G, Sov'iak, M.I, Utkin, A.A, Podlosinskii, V.I
Published in Tekhnika v sel'skom khoziaistve (1979)

by Shamov N.G, Sov'yak M.I, Utkin A.A, Podlosinskij V.I
Published in Tekhnika v Sel'skom Khozyajstve (1979)