by Karyagina, L.A, Stefan'kina, L.M, Kostyukevich, L.I, Pankrutskaya, L.I
Published in Trudy VNII sel'skokhozyajstvennoj mikrobiologii (USSR) (1988)

by Stefan'kina, L.M, Kariagina, L.A
Published in Pochvovedenie i agrokhimiia (1982)

by Kulakovskaya T.N, Stefan'kina L.M
Published in Doklady Vsesoyuznoj Akademii Sel'skokhozyajstvennykh Nauk (1975)

by Kulakovskaia, T.N, Stefan'kina, L.M
Published in Dokl Vses Akad S kh Nauk (1975)