Ivanov, A. N.; Epishina, T. A.; Goreva, T. V.; Sokolov, V. B.; Martynov, I. V.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1987 , vol. 36, # 1 p. 204 - 205
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1987 , # 1 p. 226 - 228