Pillot,J.-P. et al.
Synthesis, 1977 , p. 469 - 472

Freidlina,R.Kh. et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1962 , p. 259 - 263
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1962 , # 2 p. 282 - 286

Freidlina,R.Kh. et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1962 , p. 259 - 263
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1962 , # 2 p. 282 - 286