Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), , vol. 24, p. 2410 - 2415
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, , vol. 24, p. 2525 - 2529
Kaz'mina,N.B. et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1975 , vol. 24, p. 2410 - 2415
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1975 , vol. 24, p. 2525 - 2529