1. Razuvaev, G.A., Abakumov, G.A., and Klimov, E.S., Dokl. Akad. Nauk SSSR, 1971, vol. 201, no. 3, pp. 624–627.
2. Abakumov, G.A., Klimov, E.S., and Razuvaev, G.A., Izv. Akad. Nauk, Ser. Khim., 1971, no. 8, pp. 1827–1829.
3. Abakumov, G.A. and Klimov, E.S., Dokl. Akad. Nauk SSSR, 1972, vol. 202, no. 4, pp. 827–829.
4. Abakumov, G.A., Klimov, E.S., Ershov, V.V., and Belostotskaya, I.S., Izv. Akad. Nauk, Ser. Khim., 1975, no. 4, pp. 927–930.
5. Klimov, E.S., Lobanov, A.V., and Abakumov, G.A., Izv. Akad. Nauk, Ser. Khim., 1981, no. 9, pp. 2028–2032.