1. Boehm HP. In: Eley D, Pines H, Weisz PB, editors. Advances in catalysis. New York: Academic Press, 1966:179.
2. Puri BR. In: Walker PL, editor. Chemistry and physics of carbon. New York: Dekker, 1970:191.
3. Mattson JS, Mark HB. Activated carbon: surface chemistry and adsorption from solution. New York: Dekker, 1971:1.
4. Kinoshita K. Carbon: electrochemical and physicochemical properties. New York: Wiley, 1988:1.
5. Bansal RC, Donnet JB, Stoeckli HF. Active carbon. New York: Dekker, 1988:119.