1. A. I. Komyak, M. A. Ksenofontov, D. S. Umreiko, and M. E. Shundalov, Vestn. Belorus. Univ., Ser. 1, No. 1, 13 (2012).
2. J. Y. Gal and C. Moliton-Bouchetout, Bull. Soc. Chim. Fr., 464 (1973).
3. V. Gutmann, Coordination Chemistry in Non-aqueous Solutions (Springer, Vienna, 1968).
4. H. Normant, Russ. Chem. Rev. 39, 457 (1970).
5. Yu. M. Kessler, V. P. Emelin, A. I. Mishustin, et al., Zh. Strukt. Khim. 16, 797 (1975).