Kessels, J. W. M., Smit, C. A., & Keursten, P. (1996). The eight fields instrument: analysis framework for training effects (internal publication). (Publication)

Kessels, J.W.M. & Plomp, Tj. (1996). Course Design. In T. Plomp & D.P. Ely (Eds.), The International Encyclopedia of Educational Technology, 2nd edition (pp. 143-148). Oxford: Pergamon Press/Elsevier Science Ltd. (Publication)

Kessels, J. W. M., Smit, C. A., & Keursten, P. (1996). Het acht velden instrument: analyse-kader voor opleidingseffecten. (Interne Publicatie). (Publication)