Erashko, V. I.; Baryshnikov, A. T.; Zubanova, N. I.; Tishaninova, A. A.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1989 , vol. 38, # 2 p. 1939 - 1944
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1989 , vol. 9, p. 2106 - 2111