Arbuzov, B. A.; Erastov, O. A.; Nikonov, G. N.; Romanova, I. P.; Arshinova, R. P.; Ovodova, O. V.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1983 , vol. 32, p. 2281 - 2286
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1983 , p. 2535 - 2541