1. H.-N. Adams and J. Strahle, Z. Anorg. Allg. Chem., B485, 65–80 (1982).
2. G. Marangoni, B. Pitteri, V. Bertolasi, et al., J. Chem. Soc., Dalton Trans., No. 9, 1941–1944 (1986).
3. L. Kh. Minacheva, A. Sh. Gladkaya, V. G. Sakharova, et al., Zh. Neorg. Khim., 33, No. 3, 683–687 (1988).
4. Yu. A. Simonov, O. A. Bologa, P. N. Bourosh, et al., Abstracts of Papers from the 21st International Chugaev Conference on Coordination Chemistry, Kiev (2003), pp. 363/364.
5. S. S. Batsanov, Zh. Neorg. Khim., 36, No. 12, 3015–3037 (1991).