Carlson, K.H., and W.R. Knocke, "Modeling Manganese Oxidation with Potassium Permanganate for Drinking Water Treatment", Journal of the Environmental Engineering Division - American Society of Civil Engineers, 125, 10, 892 (October 1999).
Merkle, P. B., W.R. Knocke, D.L. Gallagher, J. Junta-Rosa, and T. Solberg. "Characterization of Filter Media Mineral Coatings: Implications for Filtration Theory and Practice", Journal American Water Works Association, 88, 12, 62, (December 1996).
Geertsema, W.S., Knocke, W.R., Novak, J.T., and Dove, D., "Long-Term Effects of Alum Sludge Application to Land", Journal American Water Works Association, 86, 11, 64 (November 1994).
Knocke, W.R., Shorney, H.L., and Bellamy, J.D., "Examining the Reactions Between Soluble Iron, DOC, and Alternative Oxidants During Conventional Treatment", Journal American Water Works Association, 86, 1, 117, (January 1994).
Knocke, W.R., Dishman, C.M., and Miller, G.F., "Measurement of Chemical Sludge Floc Density and Implications Related to Sludge Dewatering," Water Environment Federation Journal, 65, 6, 735 (Sept./Oct. 1993).