1. A. M. Rozen, Theory of Isotope Separation in Columns (Atomizdat, Moscow, 1960) [in Russian].
2. R. Treybal, Liquid Extraction (McGraw-Hill, New York, 1951; Khimiya, Moscow, 1966).
3. T. Braun and G. Ghersini, Extraction Chromatography (Elsevier, Amsterdam, New York, 1975).
4. B. M. Andreev, Ya. D. Zel’venskii, and S. G. Katal’nikov, Separation of Stable Isotopes by Physicochemical Methods (Energoatomizdat, Moscow, 1982) [in Russian].
5. Isotopes: Properties, Production, Application, Ed. by V. Yu. Baranov (IzdAT, Moscow, 2000) [in Russian].