1. C. AMPHLETT, Inorganic Ionites, Mir, Moscow, 1966 (in Russian).
2. M. M. SENYAVIN, Ion Exchange for Industry and Analysis of Inorganic Substances, Khimiya, Moscow, 1980 (in Russian).
3. A. CLEARFIELD, G. H. NANCOLLAS, R. H. BLESSING, Ion Exch, Solvent Ext., 5 (1973) 1.
4. I. V. TANANAEV, G. B. SEIFER, YU. YA. KHARITONOV et al. Chemistry of Ferrocyanide Compounds, Nauka, Moscow, 1971 (in Russian).
5. LE VAN SO, J. Radioanal. Nucl. Chem., 97 (1983) 23.