1. Sel’skokhozyaistvennyi entsiklopedicheskii slovar’ (Agricultural Encyclopaedic Dictionary), Moscow: Sovetskaya Entsiklopedia, 1989, pp. 54–55.
2. Shneider, A.Yu., Pisarev, V.B., and Knyazeva, V.P.,Biotekhnologiya vkartofelevodstve (Biotechnology in the Potato Growing Industry),Nauchn. Tr. NIlKKh, 1991, pp. 79–84.
3. Belova, O.D.,Kol’tsevaya gnil’, chernaya nozhka kartofelya i mery bor’by s nimi (Ring Rot, Black Foot of Potato, and Their Treatment), Moscow: Kolos, 1964, p. 104.
4. Ambrosova, S.M., Kirillov, A.V., Sukhacheva, E.A., Bobkova, A.F., Natsvlishvili, N.M., Malofeeva, Yu.S., and Atabekov, LG.,Bioorg. Khitn., 1992, vol. 18, no. 8, pp. 1089–1092.
5. Sukhacheva, E., Novikov, V., Plaksin, D., Pavlova, G., and Ambrosova, S.,J. Virol. Methods, 1996, vol. 56, no. 2, pp. 199–207.