1. Davies, R. A., Hartmut, J. K., and Clemens, M. M.: 1973, Chem. and Ind. 1, 827.
2. Fornwalt, H. J. and Hutchins, R. A.: 1966, Chem. Eng. 73, 130.
3. Hutchins, R. A.: 1973, Chem. Eng. 80, 133.
4. ICI America Ind.: 1971, ?valuation of Granular Carbon for Chemical Process Applications?. D 116.
5. Joyce, R. S. and Valentine, A. S.: 1962, ?Activated Carbon in Waste Water Treatment?. Seminar on Advanced Waste Treatment Research, Cincinnati, Ohio.