1. Dechow, F. J. (1989)Separation and Parification Techniques in Biotechnology. Noyes Publications, Mill Road, NJ, USA.
2. Berg, C. (1946) Hypersorption process for separation of light gases.Trans. A.I.Ch.E. 42: 665–680.
3. Broughton, D. E. and C. G. Gerhold (1961) Continuous sorption process employing fixed bed of sorbent and moving inlets and outlets.U.S. Patent 2: 985–589.
4. Ching, C. B., and D. M. Ruthven (1985) An experimental study of a simulated counter-current adsorption system—I. Isothermal steady state operation.Chem. Eng. Sci. 40: 377–885.
5. Ganetsos, G., and P. E. Barker (1993) Semicontinuous Countercurrent Chromatographic Refiners. pp. 233–255. In: C. Ganetsos and P. E. Barker (eds.),Preparative and Production Scale Chromatography. Marcel Dekker, Inc., New York, NY, USA.