1. V. V. Skopenko, A. Yu. Tsivadze, L. I. Savranskii, and A. D. Garnovskii, Coordination Chemistry (Akademkniga, Moscow, 2007) [in Russian].
2. J. W. Steed and J. L. Atwood, Supramolecular Chemistry (Wiley, New York, 2000; Akademkniga, Moscow, 2007).
3. I. I. Seifulina, A. G. Pesaroglo, L. Kh. Minacheva, et al., Zh. Neorg. Khim. 51(12), 2010 (2006) [Russ. J. Inorg. Chem. 51 (12), 1892 (2006)].
4. I. I. Seifulina, A. G. Pesaroglo, L. Kh. Minacheva, et al., Zh. Neorg. Khim. 52(4), 550 (2007) [Russ. J. Inorg. Chem. 52 (4), 494 (2007)].
5. G. M. Sheldrick, SHELXS-97, Program for the Solution of Crystal Structures, Univ. of Göttingen, Germany, 1997.