1. J. Ambros-Ingerson and S. Steel. Integrating planning, execution and monitoring. Readings in Planning, pages 735–740, 1990.
2. [Barlow et al. 1990]_J. Barlow, M. Beer, T. Bench-Capon, D. Diaper, P. Dunne, and R. Rada. Expertext: Hypertext-expert system theory, and synergy and potential applications, pages 117–127, 1990.
3. F. Brooks. Mythical man month. Addison-Wesley Publishing Company, 1982
4. A Bundy. The Catalogue of Artificial Intelligence Techniques. Springer-Verlag, 1990.
5. D. Carlson and S. Ram. Hyp er Intelligence The Next Frontier. Communications of the acm, 33(3):311–321, March 1990.