1. Klein, G. and Vermeulen, T., Cyclic performance of layered beds for binary ion exchange, Adsorption and Ion Exchange, AIChE Symposium Series, vol. 71, no. 152, New York: American Inst. of Chemical Engineers, 1975, pp. 69–76.
2. Klein, G., Design and development of cyclic operations, Percolation Processes: Theory and Applications, NATO ASI Series (E: Applied Sciences), vol. 33, Rodrigues, A.E. and Tondeur, D., Eds., Alphen aan den Rijn, The Netherlands: Sijthoff and Nordhoff, 1981, pp. 427–441.
3. Ionenaustauscher.;F. von Helfferich,1959
4. Khamizov, R.Kh., Ivanov, V.A., and Madani, A.A., Dual-temperature ion exchange: A review, React. Funct. Polym., 2010, vol. 70, no. 8, pp. 521–530. https://doi.org/10.1016/j.reactfunctpolym.2010.04.002
5. Barba, D., Brandani, V., and Foscolo, P.U., A method based on equilibrium theory for a correct choice of a cationic resin in sea water softening, Desalination, 1983, vol. 48, no. 2, pp. 133–146. https://doi.org/10.1016/0011-9164(83)80012-5