1. A methodology to model the functional structure of an organisation;Bravoco;Comput. Ind.,1985
2. D.A. Marca, C.L. McGowan, Structured Analysis and Design Technique, McGraw Hill, New York, 1988.
3. Z. Banaszak (Ed.), Modelling and Control of FMS: Petri Net Approach, Wroclaw Technical University Press, Wroclaw, Poland, 1991.
4. F. Dicesare, G. Harhalakis, J.M. Proth, M. Silva, F.B. Vernadat, Practice of Petri Nets in Manufacturing, Chapman and Hall, London, 1993.
5. J.L. Peterson, Petri net theory and the modelling of systems, Prentice Hall, Englewood Cliffs, NJ, 1981.