1. V. V. Yakshin, V. I. Zhilov, S. V. Demin, et al., Compt. Rend. Chim. 10, 1020 (2007).
2. S. V. Demin, V. I. Zhilov, A. Yu. Tsivadze, et al., Zh. Neorg. Khim. 54(3), 385 (2009) [Russ. J. Inorg. Chem. 54 (3), 385 (2009)].
3. V. V. Yakshin, N. A. Tsarenko, N. G. Zhukova, and B. N. Laskorin, Dokl. Akad. Nauk Chemistry 325, 748 (1992).
4. M. V. Logunov, Yu. A. Voroshilov, N. P. Starovoitov, et al., Radiokhimiya 48(1), 51 (2006) [Radiochemistry 48 (1), 55 (2006)].