1. Kozhevin, P.A., Mikrobnye populyatsii v prirode (Microbial Populations in Nature), Moscow, 1989.
2. Kozhevin, P.A. and Korchmaru, S.S., On the way for applying the microbial fertilizers theory, Vestn. Mosk. Univ., Ser. 17. Pochvoved., 1995, no. 2.
3. Krasil’nikov, N.A., Mikrobiologicheskie osnovy bakterial’nykh udobrenii (Microbiological Principles of Bacterial Fertilizers), Moscow, 1945.
4. Marchenko, S.A., Pankratov, T.A., Gorlenko, M.V., and Kozhevin, P.A., Multi-substrate test of natural microbial communities in soils, Vestn. Mosk. Univ., Ser. 17. Pochvoved., 2005, no. 2.
5. Anderson, J.D. and Abdul Baki, A.A., Vigor determination in soybean seed by multiple criteria, Crop Sci., 1973, vol. 13, pp. 630–633.