Veldkamp, B. P., van der Linden, W. J., & Ariel, A.. (2002). Mathematical-programming approaches to test item pool design (No. RR 02-09) (pp. 93-108). Twente, The Netherlands: University of Twente, Faculty of Educational Science and Technology.

Veldkamp, B. P. (2000). Modifications of the branch-and-bound algorithm for application in constrained adaptive testing (Research Report 00-05). Enschede, The Netherlands: University of Twente, Faculty of Educational Science and Technology, Department of Measurement and Data Analysis.

Veldkamp, B. P., & van der Linden, W. J.. (2002). Multidimensional adaptive testing with constraints on test content. Psychometrika, 67, 575-588.

Veldkamp, B. P., & van der Linden, W. J.. (2000). Multidimensional adaptive testing with constraints on test content (Research Report 00-11). Enschede, The Netherlands: University of Twente, Faculty of Educational Science and Technology, Department of Measurement and Data Analysis.

Barrada, J. R., Veldkamp, B. P., & Olea, J.. (2006). Multiple maximum exposure rates in computerized adaptive testing. In Paper presented at the SMABS-EAM Conference. Budapest, Hungary.

Veldkamp, B. P., Verschoor, A. J., & Eggen, T.. (2007). A multiple objective test assembly approach for exposure control problems in computerized adaptive testing (No. 2007-1). Measurement and Research Department Reports. Arnhem, The Netherlands: Cito.