Vol'eva, V. B.; Komissarova, N. L.; Belostotskaya, I. S.; Grishina, E. A.; Ershov, V. V.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1991 , vol. 40, # 10 p. 2088 - 2090
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1991 , # 10 p. 2381 - 2383