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Zhurnal Obshchei Khimii, 1998 , vol. 68, # 5 p. 817 - 821

Voronkov, M. G.; Vlasova, N. N.; Pestunovich, A. E.
Russian Journal of General Chemistry, 1998 , vol. 68, # 5 p. 770 - 774
Zhurnal Obshchei Khimii, 1998 , vol. 68, # 5 p. 817 - 821

Vlasova,N.N. et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1979 , vol. 28, p. 1938 - 1940
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1979 , vol. 28, # 9 p. 2105 - 2107