1. V. V. Yakshin, A. G. Fedorova, A. V. Val’kov, and B. N. Laskorin, Dokl. Akad. Nauk SSSR 277(6), 1417 (1984).
2. S. Holger, K. Gloe, J. Beger, and P. Mühl, Solvent Extr. Ion Exch. 9(3), 459 (1991).
3. H. Narita, T. Yaita, K. Tamura, and S. Tachimori, Radiochim. Acta 81, 223 (1998).
4. E. I. Sinyavskaya, Koord. Khim. 12(9), 1155 (1986).
5. T. E. Kron, E. I. Sinyavskaya, and E. N. Tsvetkov, Izv. Akad. Nauk SSSR, Ser. Khim., No. 11, 2451 (1986).