Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), , vol. 38, # 3.2 p. 635 - 637
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, , # 3 p. 709 - 711

Eremenko, L. T.; Oreshko, G. V.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1987 , vol. 36, # 6 p. 1322
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1987 , vol. 36, # 6 p. 1429 - 1430