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Huitzing, H. A., Veldkamp, B. P., & Verschoor, A. J.. (2005). Infeasibility in automated test assembly models: A comparison study of different methods. Journal of Educational Measurement, 42, 223-243.

van der Linden, W. J., Veldkamp, B. P., & Reese, L. M.. (2000). An integer programming approach to item bank design. Applied Psychological Measurement, 24, 139-150.

Veldkamp, B. P. (2001). Implementing constrained CAT with shadow tests for large item pools. Submitted for publication.