1. H. Alla, Réseaux de Petri colorés et réseaux de Petri continus: Application à l’étude des systèmes à événements discrets, Thèse d’état, I.N.P. Grenoble, France, 1987
2. Petri Nets and Grafcet: Tools for Modelling Discrete Event Systems;David,1993
3. Petri nets and integrality relaxations: A view of continuous Petri net models;Silva;IEEE Transactions on Systems, Man, and Cybernetics-Part C: Applications and Reviews,2002
4. On the control of manufacturing lines modeled by controlled continuous Petri Nets;Amrah;International Journal of System Science,1998
5. Steady-state control reference and token conservation laws in continuous Petri net systems;Mahulea;IEEE Transactions on Automation Science and Engineering,2008