1. Sirotkina, E.E. and Novoselova, L.Yu., Khim. Interesakh Ustoich. Razvit., 2005, vol. 13, no. 3, p. 359.
2. Ashirov, A., Ionoobmennaya ochistka stochnykh vod, rastvorov i gazov (Ion-Exchange Purification of Wastewater, Solutions, and Gases), Leningrad: Khimiya, 1983.
3. Paine, R.T., Ruesink J.L., Sun, A., et al., Ann. Rev. Ecology Syst., 1996, vol. 27, p. 197.
4. Panasyugin, A.S., Kitikova, N.V., Bondareva, G.V., and Sivak, Yu.B., Zh. Prikl. Khim. (S.-Peterburg), 2005, vol. 78, no. 6, p. 901.
5. Ergozhin, E.E. and Akimbaeva, A.M., Neftekhimiya, 2005, vol. 45, no. 4, p. 318.