1. .Asenjo, J.A. Selection of Operations in ’Separation Processes in Reparation Processes in Biotechnology’. Ed.: J.A. Asenjo, Marcel Dekker, N.Y., 1990, p3–16.
2. Asenjo, J.A. and Patrick, I. Large Scale Protein Purification in T ’Protein Purification Applications: a Practical Approach’. Eds.: E.L.V. Harris and S. Angal, IRL press, U.K., 1990, p1–29.
3. Hagen, A.J., Hatton, T.A. and Wang, D.I.C.Biotechnol. Bioeng., 1990, 35, 955–965.
4. Huang, R.-B. Ph.D. thesis, University of Reading, 1990.
5. Kula, M.R. Recovery Operations, in ’biotechnology’, Ed. H.J. Rehm and G. Reed, vol.2: Fundamentals of Biochemical Engineering, Verlag Chemie Mannheim, 1985.