Krasnaya, Zh. A.; Stytsenko, T. S. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1983 , vol. 32, # 4 p. 776 - 779 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1983 , # 4 p. 850 - 855