1. M. A. Katkova, A. G. Vitukhnovskii, and M. N. Bochkarev, Usp. Khim., 74, No. 12, 1193–1215 (2005).
2. J.-C. G. Bünzli, Acc. Chem. Res., 39, 53–61 (2006).
3. A. V. Metelitsa, A. S. Burlov, S. O. Bezuglyi, et al., Koordinats. Khim., 32, No.12, 894–905 (2006).
4. N. N. Gorshkov, G. V. Sidorenko, and D. I. Suglobov, Radiokhimia, 36, No. 2, 154–156 (1994).
5. X.-Z. Fan, S.-P. Chen, G. Xie, et al., Acta Chim. Sinica, 64, No. 10, 1022–1030 (2006).