1. Samsonov, G.V., Trostyanskaya, E.B., and El’kin, G.E., Ionnyi obmen. Sorbtsiya organicheskikh veshchestv (Ion Exchange: Sorption of Organic Substances), Leningrad: Nauka, 1969.
2. Shataeva, L.K., Kuznetsova, N.N., and El’kin, G.E., Karboksil’nye kationity v biologii (Carboxyl Cation Exchangers in Biology), Leningrad: Nauka, 1979.
3. Samsonov, G.V., Ion-Exchange Sorption and Preparative Chromatography of Biologically Active Molecules, New York: Consultants Bureau, 1986.
4. Demin, A.A., Chernova, I.A., and Shataeva, L.K., Ionoobmennaya sorbtsiya biologicheski aktivnykh veshchestv (Ion-Exchange Sorption of Biologically Active Substances), St. Petersburg: Sankt-Peterb. Gos. Univ., 2008.
5. Gracheva, I.M., Tekhnologiya fermentnykh preparatov (Technology of Enzyme Preparations), Moscow: Agropromizdat, 1987, p. 122.