1. S. V. Demin, V. I. Zhilov, A. Yu. Tsivadze, et al., Zh. Neorg. Khim. 54, 385 (2009).
2. T. M. Samy, H. Imura, and N. Suzuki, J. Radioanal. Nucl. Chem. Lett. 126, 153 (1988).
3. S. V. Demin, E. V. Fatyushina, V. I. Zhilov, et al., Zh. Neorg. Khim. 53, 1234 (2008).
4. A. N. Turanov, V. K. Karandashev, V. E. Baulin, et al., Solv. Extr. Ion Exch. 27, 551 (2009).
5. S. V. Demin, V. I. Zhilov, A. Yu. Tsivadze, et al., Zh. Neorg. Khim. 51, 1182 (2006).