1. U. A. Valiev and M. I. Emel'yanov, Zh. strukt. khimii,5, 670 (1964).
2. M. I. Emel'yanov, Zh. strukt. khimii,6, 295 (1965).
3. O. Ya. Samoilov, The Structure of Aqueous Electrolyte Solutions and the Hydration of Ions [in Russian], Izd. AN SSSR, Moscow (1957).
4. W. H. Zachariasen, J. chem. phys.,3, 158 (1935).
5. K. A. Valiev and M. I. Emel'yanov, Zh. strukt. khimii,5, 7 (1964).