1. Brandon, P. Knowledge based systems markets and methodologies. Proceedings International Symposium on Economic Evaluation and The Built Environment 1993, CIB W55 and CIB W95. Edited by: Manso, A., Newton, S. and Gaarslev, A. Vol. 6, pp.11–27. Lisbon: LNEC.
2. Task-structure analysis for knowledge modeling
3. Heuristic classification
4. Circular 12/90,1990