Arbuzov, B. A.; Kadyrov, R. A.; Klochkov, V. V.; Arshinova, R. P.; Aganov, A. V.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1982 , vol. 31, # 3 p. 520 - 525
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1982 , # 3 p. 588 - 593