Podol'skii, A. V.; Khonina, T. G.; Filyakova, T. I.; Kachalkova, M. I.; Kodess, M. I.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1991 , vol. 40, # 10 p. 1977 - 1979
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1991 , # 10 p. 2259 - 2261