by Khrustaleva, L.I, Lapteva, L.A, Veselova, T.P
Published in Khimiia v sel'skom khoziaistve (1982)

by Ryabova V.A, Kurochkina K.G, Khrustaleva L.I
Published in Byulleten' Vsesoyuznogo instituta gel'mintologii (1981)