Turuta, A. M.; Vesela, I. V.; Kamernitskii, A. V.; Vlakhov, Rodoslav
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1991 , vol. 40, # 12 p. 2508 - 2511
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1991 , vol. 40, # 12 p. 2875 - 2878