1. Ivanov, K.I. and Blagova, T.A., Zh. Obshch. Khim., 1952, vol. 22, no. 3, p. 784.
2. Sokolov, P.A. and Aleksandrov, Yu.A., Usp. Khim., 1978, vol. 47, no. 2, p. 307.
3. Lyavinets, A.S., Zh. Fiz. Khim., 2000, vol. 74, no. 7, p. 1198.
4. Lyavinets, A.S., Abramyuk, I.S., and Choban, A.F., Zh. Obshch. Khim., 2004, vol. 74, no. 7, p. 1157.
5. Gutmann, V., Coordination Chemistry in Non-Aqueous Solutions, Vienna: Springer, 1968. Translated under the title Khimiya koordinatsionnykh soedinenii v nevodnykh rastvorakh, Moscow: Mir, 1971, p. 202.