1. R. David, H. Alla, Continuous Petri nets, in: 8th European Workshop on Application and Theory of Petri Nets, vol. 340, 1987, pp. 275–294
2. M. Silva, J.M. Colom, On the structural computation of synchronic invariants in p/t nets, in: 8th European Workshop on Application and Theory of Petri nets, vol. 340, 1987, pp. 237–258
3. Differential equation approximations for Markov chains;Darling;Probab. Surv.,2008
4. Autonomous continuous p/t systems;Recalde,1999
5. Introduction to fluid Petri nets;Vázquez,2013