1. Ukshe, E.A. and Bukun, N.G., Tverdye elektrolity (Solid Electrolytes), Moscow: Nauka, 1977.
2. Wiebenga, E.N., Havinnga, E. E., and Boswijk, K.H., Advances in Inorganic Chemistry and Radiochemistry, New York: Academic, 1961.
3. Benderskii, V.A. and Blyumenfel’d, L.A., Dokl. Akad. Nauk SSSR, 1962, vol. 144, no. 4, p. 813.
4. Kargin, V.A., Organicheskie poluprovodniki (Organic Semiconductors), Moscow: Nauka, 1968.
5. Mikhailova, A.M. and Efanova, V.V., Elektrokhimiya, 1997, vol. 33, p. 501 [Russ. J. Electrochem. (Engl. Transl.), vol. 33, p. 459].