Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), , vol. 31, # 2 p. 325 - 329
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, , # 2 p. 359 - 364
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), , vol. 35, # 3 p. 648 - 650
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, , # 3 p. 706 - 709