1. Reisig, W. Petri Nets: An Introduction, Springer-Verlag, Berlin, 1985.
2. Evans J.B. `The Devnet: a Petri Net for Discrete Event Simulation’, (Rozenberg, G., Ed.) Advances in Petri Nets 1993, Lecture Notes in Computer Science, 674, (Eds: G. Goos, J. Hartmanis ), Springer-Verlag, Berlin, 1993, 91–125.
3. Evans, J.B. Structures of Discrete Event Simulation: An Introduction to the Engagement Strategy,Ellis Horwood, Chichester, UK, pp. 279, 1988; ISBN: 0–7458–0103–X.
4. Boden, Margaret Artificial Intelligence and Natural Man, Second Edition, MIT Press, London, 1987.
5. Evans, J.B. ‘System Synthesis: An Object Petri-Net Methodology’, Proceedings of the European Simulation MultiConference 1994,Barcelona, June 1–3 1994, 202–206, and University of Hong Kong Department of Computer Science Technical Report TR-93–09, pp. 13.