1. Arathoon, W. R., S. E. Builder, A. S. Lubiniecki, and R. D. Vanreis. 1987. Process for producing biologically active plasminogen activator. European Patent 0,248,675.
2. Belter, P. A., E. L. Cussler, and W.-S. Hu. 1988. Bioseparations—Downstream Processing for Biotechnology. New York: John Wiley & Sons.
3. Brunner, K. H., and H. Hemfort. 1988. Centrifugal separation in biotechnical processes. In Downstream Processes: Equipment and Techniques—Advances in Biotechnical Processes ed. A. Mizrahi, Vol. 8, pp. 3–50. New York: Allan R. Liss.
4. Colton, C. K. 1987. Analysis of membrane processes for blood purification. Blood Purif. 5:202–251.
5. Kohler, G., and C. Milstein. 1975. Continuous cultures of fused cells secreting antibody of predefined specificity. Nature 256:495–497.