1. Pasynskii, A.A., Skabitsky, I.V., Torubaev, Yu.V., and Shapovalov, S.S., J. Organomet. Chem., 2009, vol. 694, no. 21, p. 3373.
2. Pasynskii, A.A., Skabitskii, I.V., Torubaev, Yu.V., et al., Zh. Neorg. Khim., 2005, vol. 50, no. 8, p. 1293 [Russ. J. Inorg. Chem. (Engl. Transl.), vol. 50, no. 8, p. 1197].
3. Blake, D.M. and Roundhill, D.M., Inorg. Synth., 1978, vol. 18, p. 122.
4. Hieber, W. and Schropp, W., Z. Naturforsch., A: Phys. Sci., 1959, vol. 14b, p. 460.
5. Sheldrick, G.W., CELL-NOW, Gottingen (Germany): Univ. of Gottingen, 2005.