1. Meyer, J.-A. and A. Guillot. Simulation of Adaptive Behavior in Animats: Review and Prospect. in First International Conference on Simulation of Adaptive Behavior. 1991. Paris, September 24–28, 1990: MIT Press.
2. Correia, L. and A. Steiger-Garção. Behavior Based Architecture with Distributed Selection. in The Biology and Technology of Intelligent Autonomous Systems. 1994. Trento, Italy, 1–12 March 1993: Springer-Verlag (in publication).
3. Correia, L. and A. Steiger-Garção. A Model of Hierarchical Behavior Control for an Autonomous Vehicle, in PerAc'94 From Perception to Action. 1994. Lausanne, Switzerland, 7–9 Sep.: IEEE Computer Society Press.
4. Maes, P., ed. Designing Autonomous Agents. 1990, MIT Press.
5. Brooks, R.A., A Robust Layered Control System For A Mobile Robot. IEEE Journal of Robotics and Automation, 1986. vol. RA-2(No.1, March).