1. N.E. Andersen, F. Kensing, M. Lassen, J. Ludin, L. Mathiassen, A. Munk-Madsen, P. Sørgaard: Professionel Systemudvikling, Kopenhagen, 1986.
2. G. Bateson: Mind and Nature — A Necessary Unity; Bantam Books 1980.
3. G. Bjerknes, T. Bratteteig: Perspectives on Description Tools and Techniques in System Development. In: P. Docherty, K. Fuchs-Kittowski, P. Kolm, L. Mathiassen (Eds.): Systems Design for Human Development and Productivity: Participation and Beyond, North-Holland, Amsterdam, 1987.
4. G. Bjerknes, T. Bratteteig: Florence in Wonderland. System Development with Nurses. In: G. Bjerknes, P. Ehn, M. Kyng (Eds.): Computers and Democracy — A Scandinavian Challenge, Avebury, Aldershot, England, 1987.
5. S. Bødker: User Interface Design, Draft for publication in Utopia Report No. 15, Aarhus University, 1986.