1. R. L. Barinskii and V. I. Nefedov, X-Ray Spectral Determination of the Charge of Atoms in Molecules [in Russian], Nauka, Moscow (1966).
2. Yu. I. Tarasevich, Structure and Chemistry of the Surface of Laminar Silicates [in Russian], Nauk, Dumka, Kiev (1988).
3. E. L. Wagner, J. Chem. Phys.,37, No. 4, 751?759 (1962).
4. Yu. I. Tarasevich and F. D. Ovcharenko, Adsorption on Clay Minerals [in Russian], Nauk. Dumka, Kiev (1975).
5. V. C. Farmer, The Chemistry of Soil Constituents, Wiley, New York (1978), pp. 405?448.