Leeman, Y. A. M., & Volman, M. L. L. (1999). Inclusief onderwijs: receptenboek of speurtocht; over diversiteit in de klas, onderwijskundig onderzoek en de professionaliteit van de docent. Comenius. Wetenschappelijk forum voor opvoeding, onderwijs en cultuur, 19(1), 17-35.
Asuncion Gomez Perez, V., & Benjamins, V. R. (1999). Applications of Ontologies and Problem-Solving Methods. The AI Magazine, 20, 119-122.
Benjamins, V. R., & Fensel, D. (1999). Guest Editors' Introduction. International Journal of Software Engineering and Knowledge Engineering, 20(9), 277-279.
Benjamins, V. R., Fensel, D., Decker, S., & Gomez Perez, A. (1999). Building Ontologies for the Internet: a Mid Term Report.International Journal of Human-Computer Studies, 51, 687-712.
Meeren Terwogt-Kouwenhoven, K. (1999). Wat te doen tegen niets weg kunnen gooien. Psychologie, 2, 38-39.
Everaerd, W. T. A. M. (1999). Today, tomorrow; and then what? In T. Brander (Ed.), The Future of Psychology. Amsterdam VSPA Ledenservice.
Bouwer, A. J. (1999). ArgueTrack: Computer Support for Argumentation in Education. MSc by Research Thesis. University of Edinburgh.
Bouwer, A. J. (1999). ArgueTrack: Computer Support for Educational Argumentation. In M. Vivet, & S. P. Lajoie (Eds.), Artificial Intelligence in Education, Open Learning Environments: New Computational Technologies to Support Learning, Exploration Collaboration (pp. 623-625). IOS Press.
Breuker, J. A. P. J. (1999). Indexing problem solving methods for reuse. In R. Studer, & D. Fensel (Eds.), Knowledge Acquisition, Modelling and Management (pp. 315-322). Springer Verlag.
Chistoph, L. H., & Sande, J. P. (1999). Werkboek bedragsobservatie, systematisch observeren en The Observer . [Workbook observing behaviour, systematic observation and The Observer]. Wolters Noordhoff.