参考文献
Opalovskii, A. A.; Seifullina, I. I.; Petrova, T. V.; Krivosheeva, T. E.
Russian Journal of Inorganic Chemistry (Translation of Zhurnal Neorganicheskoi Khimii), 1977 , vol. 22, p. 317 - 319
Zhurnal Neorganicheskoi Khimii, 1977 , vol. 22, p. 571 - 574