1. I. L. Knunyants (ed.), Chemical Encyclopedia [in Russian], Vol. 1, Izd. “Sovetskaya Entsiclopediya,” Moscow (1988).
2. I. L. Knunyants (ed.), Chemical Encyclopedia [in Russian], Vol. 3, Nauchnoe Izd. “Bol’shaya Rossiiskaya Entsiklopediya”, Moscow (1992).
3. ibid., Vol. 5
4. V. M. Berezovskii, Chemistry of Vitamins [in Russian], N. A. Preobrazhenskii (ed.). Pishchepromizdat, Moscow (1959).
5. M. M. Shemyakin, A. S. Khokhlov, M. N. Kolosov, et al., Chemistry of Antibiotics [in Russian], Izd. Akad. Nauk SSSR Moscow (1961).