Isagulyants, G. V.; Rosengart, M. I.; Bryukhanov, V. G.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1980 , vol. 29, # 4 p. 621 - 625
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1980 , # 4 p. 870 - 874