1. Kulov, N.N., Some problems of separation of mixtures, Theor. Found. Chem. Eng., 2007, vol. 41, p. 1.
2. Minenko, V.P., Limiting enrichment of intermediate isotopes at cascade ends, At. Energ., 1972, vol. 33, p. 704.
3. Sulaberidze, G.A., Potapov, D.V., Borisevich, V.D., and Quanxin, X., Enrichment of components with intermediate masses in a quasi-ideal cascade, At. Energ., 2006, vol. 100, p. 51.
4. Sulaberidze, G.A., Palkin, V.A., Borisevich, V.D., et al., Teoriya kaskadov dlya razdeleniya binarnykh i mnogokomponentnykh izotopnykh smesei, (Cascade Theory for Separation of Binary and Multicomponent Isotope Mixtures), Borman, V.D., Ed., Moscow: Nacionaln.—Issled. Yadernyi Univ. MIFI, 2011.
5. Borisevich, V.D., Potapov, D.V., Sulaberidze, G.A., et al., On Calculation of Cascades with Additional Withdrawal for Separation of Multicomponent Isotope Mixtures, Preprint of Moscow Engineering Physics Inst., Moscow, 1993, no. 007-93.