Kessels, J.W.M. (1993). Towards design standards for curriculum consistency in corporate education. PhD Thesis. University of Twente. (Publication)

Vlaming, H. (1993). Leren intern te leren. Financieel Economisch Magazine, 24(18), 70–71. (Interview)

Cozijnsen, A. J. (1982). Inleiding in de organisatie-agologie (W. J. Vrakking, ed.). Alphen aan den Rijn/Brussel. (Publication)