Varlamov, S. V.; Kadorkina, G. K.; Shustov, G. V.; Chervin, I. I.; Kostyanovskii, R. G.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1985 , vol. 34, # 10 p. 2240
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1985 , # 10 p. 2416

Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), , vol. 38, # 4.2 p. 793 - 800
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, , # 4 p. 882 - 890