Gontar, A. F.; Bykhovskaya, E. G.; Vinogradov, A. S.; Knunyants, I. L.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1981 , vol. 30, # 11 p. 2188 - 2191
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1981 , # 11 p. 2632 - 2635

Kadyrov, A. A.; Bargamov, G. G.; Rokhlin, E. M.
Journal of Fluorine Chemistry, 1993 , vol. 65, # 3 p. 195 - 202