Kessels, J. & Keursten, P. (2002). Creating a knowledge productive work environment. Lline, Lifelong Learning in Europe, 7(2) 104-112. (Publication)

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