1. Berlage, T. and Genau, A. (1993) From Undo to Multi-User Applications, in proc. of Vienna Conference on Human Computer Interaction 1993, Vienna, Austria
2. Burati, J.M. Farrington, J.J. and Ledbetter, W.B. (1992) Causes of Quality Deviations in Design and Construction. Journal of Construction Engineering and Management, 118.
3. Karvonen, S., (1995) Computer Supported Management of Changes, working paper, Institute of Industrial Automation, Helsinki University of Technology.
4. Kimmons, R.L. (1990) Project Management Basics: A Step by Step Approach, Marcel Decker, New York.
5. Kuhlmann, T. (1991) A Revolving Planning and Control System, International Working Conference on New Approach Towards One-of-a-Kind Production (eds. Hirsch, B.E. and Thoben, K.-D.), Bremen, Germany.