1. F. Helfferich, Ion Exchange (McGraw-Hill, New York, 1962).
2. Ion Exchange: A Series of Advances, Ed. by J. A. Malinsky (Buffalo, New York, 1966), Vol. 1.
3. V. A. Shaposhnik, Sorbts. Khromatogr. Protsessy 20, 48 (2020). https://doi.org/10.17308/sorpchrom.2020.20/2379
4. R. Kh. Khamizov and A. M. Dolgonosov, Sorbts. Khromatogr. Protsessy 20, 641 (2020).
5. V. A. Shaposhnik, Sorbts. Khromatogr. Protsessy 21, 285 (2021).