1. S. S. Stavitskaya and V. V. Strelko, Teor. Éksp. Khim.,31, No. 2, 76?80 (1995).
2. V. G. Nikolaev and V. V. Strelko, Chemisorption on Activated Carbons [in Russian], Naukova Dumka, Kiev (1984).
3. B. R. Puri, S. L. Malhotra, and R. C. Bansal, J. Indian Chem. Soc.,40, No. 3, 179?187 (1963).
4. G. A. Stetsyuk and Yu. A. Serguchev, Zh. Obshch. Khim.,51, No. 11, 2564?2570 (1981).
5. T. Haim and J. Abraham, Carbon,23, No. 3, 291?299 (1985).