1. Grebennikov, M., Ekspert Volga, 2007, no. 12, pp. 20–22.
2. Filippenko, L.K. and Belonogov, K.N., Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol., 1971, vol. 14, no. 4, pp. 541–545.
3. Lyubarskii, G.D., Oparina, G.K., Karvalishvili, Z.Ya., et al., Khim. Prom-st’, 1972, vol. 48, no. 7, pp. 491–493.
4. Areshidze, Kh.I., Chivadze, G.O., and Tsereteli, B.S., Zh. Prikl. Khim., 1982, vol. 55, no. 9, pp. 2050–2054.
5. Kotova, V.G., Murzin, D.Yu., and Kul’kova, N.V., Khim. Prom-st’, 1994, vol. 3, pp. 143–146.