参考文献
Korovin, S. S.; Lebedeva, E. N.; Galaktionova, O. V.; Kal'dina, T. I.; Lebedev, V. G.
Russian Journal of Inorganic Chemistry (Translation of Zhurnal Neorganicheskoi Khimii), 1977 , vol. 22, p. 722 - 725
Zhurnal Neorganicheskoi Khimii, 1977 , vol. 22, p. 1328 - 1333