Il'inskaya, L. V.; Kuz'mina, N. A.; Gasanov, R. G.; Chukovskaya, E. Ts.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1987 , vol. 36, # 10 p. 2087 - 2090
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1987 , # 10 p. 2253 - 2256