1. Kokotov, Yu.A. and Pasechnik, V.A., Ravnovesie i kinetika ionnogo obmena (Equilibrium and Kinetic of Ion Exchange), Leningrad: Khimiya, 1970.
2. Rieman, W. and Walton, H.F., Ion Exchange in Analytical Chemistry, New York: Pergamon Press, 1970.
3. Okada, T. and Harada, M., Anal. Chem., 2004, vol. 76, no. 15, p. 4564.
4. Harada, M. and Okada, T., J. Chromatogr. A, 2005, vol. 1085, no. 1, p. 3.
5. Harada, M. and Okada, T., Chem. Commun., 2008, vol. 16, no. 41, p. 5182.