Vol'eva, V. B.; Zhorin, V. A.; Khristyuk, A. L.; Ershov, V. V.; Enikolopyan, N. S.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1983 , vol. 32, # 2 p. 342 - 345
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1983 , # 2 p. 380 - 383