1. Dechow, F.J. 1989. Separation and Purification Technology in Biotechnology. Noyes Publications, Park Ridge, New Jersey.
2. What Are Dilute Solutions?
3. Heftman, E. 1975. Chromatography, a Laboratory of Chromatographic and Electrophoretic Methods. Van Nostrand Reinhold Co., New York.
4. Righetti, P.G. 1983. Isoelectric Focusing: Theory, Methodology, and Applications. Elsevier Biomedical Press, Amsterdam.
5. Schumacher, E. 1957. Uber Fokussierenden lonenaustausch IV. Zur Theorie des Fokussierungseffektes. Helvetica Chimica Ada, No. 240: 2322–2340.