In: Theoretical Computer Science Vol. 153, No. 1--2, pages 3-48. 1996.
Also in: Fernández, C.; Merceron, A.; Parada, V.; Rozenberg, G.; Solar, M.: Petri Nets, First International Course in Petri Nets, Santiago, Chile, 1993, pages 1-21. Editorial Universidad de Santiago de Chile, 1997. Only first part.
Abstract: The basic axioms, definitions and concepts of net theory are reviewed, and new concepts and results presented, among them security constructions, compilations of nets, measurement and modelling of continuous variables, and a law on the limits of precision in observation, measurement, control and realistic modelling. The close relations between the net modelling approach and chrono-topology, continuity problems, physics, logic and computation are pointed out and explained.