Rudchenko, V. F.; Shevchenko, V. I.; Ignatov, S. M.; Kostyanovskii, R. G.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1983 , vol. 32, # 10 p. 2174
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1983 , # 10 p. 2411 - 2412