Chudinov, A. V.; Rozantsev, E. G.; Rozynov, B. V. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1983 , vol. 32, # 2 p. 370 - 375 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1983 , # 2 p. 409 - 413