参考文献

Zhurnal Neorganicheskoi Khimii, , vol. 1, # 7 p. 1 Zhurnal Neorganicheskoi Khimii, , vol. 1, p. 1646 - 1657 C. A., , p. 1716 Nb: MVol.B4, 11.13.2, page 268 - 268