Ivanova, N. M.; Cheskis, B. A.; Moiseenkov, A. M.; Nefedov, O. M.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1990 , vol. 39, # 1.2 p. 208
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1990 , # 1 p. 225 - 226