1. Lee, D.Y. and F. DiCesare, Scheduling Flexible Manufacturing Systems using Petri Nets and Heuristic Search, in IEEE Transactions on Robotics and Automation 199
2. Silva, M., Las Redes de Petri en la Automatica y la Informdtica. 1985, Madrid - Espana: Editorial A.C.
3. Barata, J., L.M. Camarinha-Matos, and J.F.R. Chavarria, Modelling, Dynamic Persistence and Active Images for Manufacturing Processes, in Studies in Informatics and Control1994, p. 173–183.
4. Barata, J. and L.M. Camarinha-Matos, Development of a FMS/FAS System - The CRI’s Pilot Unit, in Studies in Informatics and Control1994, p. 231–239.
5. Barata, J. and L.M. Camarinha-Matos. Dynamic Behaviour Objects in Modelling Manufacturing Processes. in CAPE’95 - The Fifth International Conference on Computer Applications in Production and Engineering. 1995. Beijing - China: