1. Alvarez, M. L., Burgos, A., Sarachaga, I., Estévez, E., Marcos, M.: GEMMA based approach for generating PLCopen Automation projects. In: Proceedings of the IFAC conference on embedded systems, computational intelligence and telematics in control, Wuerzburg, 03.-05.04.2012.
2. Arnold, G. V., Henriques, P. R.: A graphical interface based on GRAFCET for programming Industrial Robots off-line. In: Proceedings of the international conference on informatics in control, automation and robotics, Barcelona, 14.-17.09.2005.
3. A unifying semantics for sequential function charts;Bauer;Integration of Software Specification Techniques for Applications in Engineering, Lecture Notes in Computer Science,2004
4. Grafcet: behavioural issues and control synthesis;Carré-Ménétrier;European Journal of Control,2002
5. Charbonnier, F., Alla, H., David, R.: The supervised control of discrete event dynamic systems: a new approach, In: Proceedings of the. IEEE conference on decision and control, New Orleans 13.-15.12.1995.