Arbuzov, B. A.; Erastov, O. A.; Nikonov, G. N.; Zyablikova, T. A.; Yufit, D. S.; Struchkov, Yu. T.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1981 , vol. 30, # 7 p. 1237 - 1242
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1981 , # 7 p. 1539 - 1544