Bekker,R.A. et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1978 , vol. 27, p. 430 - 432
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1978 , vol. 27, p. 493 - 495
Bekker,R.A. et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1978 , vol. 27, p. 430 - 432
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1978 , vol. 27, p. 493 - 495