Galakhov, M. V.; Petrov, V. A.; Belen'kii, G. G.; Bakhmutov, V. I.; German, L. S.; Fedin, E. I.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1986 , vol. 35, # 5 p. 959 - 964
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1986 , # 5 p. 1057 - 1063