1. C. Jahreis, “Do We Need Filtration?” Filtration Separation. Cited in Fluid Particle Sep. J 5 (1):53-54 (March 1992).
2. N. P. Cheremisinoff and D. S. Azbel, Liquid Filtration, pp. 93–97, Ann Arbor Science, Woburn, MA (1983).
3. Fluid Particle Sep. J., The Hershey Conference on the Pore, pp. 12S-13S, 4-3 (Sept. 1991).
4. F. M. Tiller, “From Pipe to Porous Media Parameters,” in Conference on the Pore, Hershey, PA, May, 1991. Fluid Particle Sep. J., pp. 139-146, 4-2 (June 1991).
5. F. M. Tiller, “Tutorial: Interpretation of Filtration Data I & II,” Fluid Particle Sep. J., pp. 85-94, 3-2 (June 1990) and pp. 157-164, 3-3 (Sept. 1990).