Shvartsberg, M. S.; Ivashkina, N. V.; Moroz, A. A.; Myasnikova, R. N.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1988 , vol. 37, p. 404 - 406
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1988 , # 2 p. 485 - 488