Van Impe, J., Nicolai, B., Vanrolleghem, P. A., Spriet, J., De Moor, B. et Vandewalle, J. (1993) Optimal control of the penicillin G fed-batch fermentation: An analysis of the model of Heijnen et al. Optimal Control Applications and Methods, 15, 13-34.  

Nicolai, B., Van Impe, J., Vanrolleghem, P. A. et Vandewalle, J. (1992) Evaluation of two unstructured mathematical models for the penicillin G fed-batch fermentation. Antonie van Leeuwenhoek, 62, 273-283.  

Van Impe, J., Vandewalle, J., Vanrolleghem, P. A. et Verstraete, W. (1992) New trends in model-based monitoring and control of the activated sludge wastewater treatment process. Journal A (Special Issue on Environmental Control), 33(3), 19-29.  

Van Impe, J., Nicolai, B., Vanrolleghem, P. A., Spriet, J., De Moor, B. et Vandewalle, J. (1992) Optimal control of the penicillin G fed-batch fermentation: An analysis of a modified unstructured model. Chem. Eng. Comm., 117, 337-353.  

Nicolai, B., Van Impe, J., Vanrolleghem, P. A. et Vandewalle, J. (1991) A modified unstructured mathematical model for the penicillin G fed-batch fermentation. Biotechnol. Lett., 13, 489-494.  

Van Impe, J., Vanrolleghem, P. A. et Iserentant, D. (1998) Advanced Instrumentation, Data Interpretation and Control of Biotechnological Processes. Kluwer Academic Publishers, Dordrecht, The Netherlands. ISBN 0-7923-4860-5. pp. 464.  

Stigter, J., Vanrolleghem, P. A. et Van Impe, J. (1999) On-line estimation of parameters in a respiration model using a continuous-discrete type of recursive prediction error algorithm. In: Proceedings European Control Conference ECC'99. Karlsruhe, Germany, August 31 - September 3 1999. CD-ROM paper 1049-7.  

Spanjers, H., Van Impe, J. et Vanrolleghem, P. A. (1992) Extracts from the discussions held during the workshop on modelling, monitoring and control of the activated sludge process. In: Proceedings Workshop Modelling, Monitoring and Control of the Activated Sludge Process. Med. Fac. Landbouww. Rijksuniv. Gent, 57, 2257-2276.  

Vanrolleghem, P. A., Van Impe, J., Vandewalle, J. et Verstraete, W. (1992) Advanced monitoring and control of the activated sludge process: On-line estimation of crucial biological variables in a structured model with the RODTOX biosensor. In: Modeling and Control of Biotechnical Processes. Eds. Karim M.N. and Stephanopoulos J., Pergamon Press, Oxford. 355-358.  

Vanrolleghem, P. A. et Van Impe, J. (1992) On the use of structured compartment models for the activated sludge biodegradation process. In: Proceedings Workshop Modelling, Monitoring and Control of the Activated Sludge Process. Med. Fac. Landbouww. Rijksuniv. Gent, 57, 2215-2228.  

Van Impe, J., Vanrolleghem, P. A., Verstraete, W., De Moor, B. et Vandewalle, J. (1991) Model based monitoring and control of activated sludge wastewater treatment processes. Part II: Nonlinear control of the biotransformation and the sedimentation process. In: Modelling and Control of Water Resources Systems. Eds. Kerckhoffs E., Koppelaar H., Van der Beken A. and Vansteenkiste G., SCS, San Diego. 221-226.  

Van Impe, J., Nicolai, B., Vanrolleghem, P. A., Spriet, J., De Moor, B. et Vandewalle, J. (1991) Optimal control of the penicillin G fed-batch fermentation: An analysis of a new unstructured model. In: Proceedings European Control Conference. Grenoble, France, July 2-5 1991. 1624-1629.  

Vanrolleghem, P. A., Van Impe, J., Vandewalle, J. et Verstraete, W. (1991) Model based monitoring and control of activated sludge wastewater treatment processes. Part I. On-line estimation of crucial biological parameters with the RODTOX. In: Modelling and Control of Water Resources Systems. Eds. Kerckhoffs E., Koppelaar H., Van der Beken A. and Vansteenkiste G., SCS, San Diego, 215-220.  

Vanrolleghem, P. A. et Van Impe, J. (1993) New applications of activated sludge structured compartment models. Poster presented at the Sixth European Conference on Biotechnology. Firenze, Italy, June 13-17 1993.  

Van Impe, J., Vanrolleghem, P. A., De Moor, B. et Vandewalle, J. (1992) State estimation and control of an activated sludge wastewater treatment process using a structured model. Lecture held at the 11th BeNeLux Meeting on Systems and Control. Veldhoven, The Netherlands, March 4-6 1992.  

Van Impe, J., Vanrolleghem, P. A., De Moor, B. et Vandewalle, J. (1991) Model-based control of the activated sludge wastewater treatment process. Poster presented at the Environmental Platform. Louvain, Belgium, October 2 1991.  

Van Impe, J., Vanrolleghem, P. A., Verstraete, W., De Moor, B. et Vandewalle, J. (1991) Structured versus unstructered modeling of biotechnical plants: An application to activated sludge wastewater treatment process control. Seminar at CESAME. Universite Catholique de Louvain, Louvain-la-Neuve, Belgium, November 26 1991.  

Nicolai, B., Van Impe, J., Vanrolleghem, P. A., Spriet, J. et Vandewalle, J. (1990) A new unstructured mathematical model for the penicillin G fed-batch fermentation. ESAT-SISTA Technical Report 1990-28, Department of Electrical Engineering, K.U.Leuven. pp. 49.