Freidlina,R.Kh.; Kost,T.A.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1963 , p. 1445 - 1448
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1963 , # 9 p. 1583 - 1587