1. ?Biological Industrial Waste-Water Treatment Minimizing Biomass Production and Maximizing Biomass Concentration.? Ph. D. Thesis, Delft Technical University, The Netherlands, 1983.
2. and in Biological Fluidized Bed Treatment of Water and Wastewater, and Eds. (Ellis Horwood, Chichester, 1981), p. 383.
3. ?Optimization of Anaerobic Digestion of Soluble Carbohydrate Containing Wastewaters by Phase Separation,? Ph. D. Thesis, University of Amsterdam, The Netherlands, 1983.
4. ?Acidogenesis of Soluble Carbohydrate-Containing Wastewaters,? Ph. D. Thesis, University of Amsterdam, The Netherlands, 1983.
5. ?The Acidogenic Dissimilation of Glucose: A Kinetic Study of Substrate and Product Inhibition,? Ph. D. Thesis, University of Amsterdam, The Netherlands, 1985.