Pochvenno-ėkologicheskie problemy v stepnom zemledelii : predlozheni︠i︡a po ra︠t︡sionalʹnomu ispolʹzovani︠i︡u pochvennykh resursov Bolgogradskoĭ oblasti : sbornik nauchnykh trudov - Ivanov, I. V. (Igorʹ Vasilʹevich); Gavrilov, A. M. (Alekseĭ Maksimovich) (Pushchinskiĭ nauch. ︠t︡sentr RAN, 1992)