Yurtanov, A. I.; Martynov, I. V.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1986 , vol. 35, p. 1425 - 1428
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1986 , # 7 p. 1572 - 1575