1. R. Baduel JM Bruel I. Ober and E. Doba. 2018. Definition of states and modes as general concepts for system design and validation. (2018). https://hal.archives-ouvertes.fr/hal-01989427 R. Baduel JM Bruel I. Ober and E. Doba. 2018. Definition of states and modes as general concepts for system design and validation. (2018). https://hal.archives-ouvertes.fr/hal-01989427
2. R. Balakrishnan and K. Ranganathan. 2012. A Textbook of Graph Theory. Springer New York New York NY. 10.1007/978-1-4614-4529-6 R. Balakrishnan and K. Ranganathan. 2012. A Textbook of Graph Theory . Springer New York New York NY. 10.1007/978-1-4614-4529-6
3. Paul Baracos. 1992. Grafcet step by step. Famic Automation Incorporated. Paul Baracos. 1992. Grafcet step by step . Famic Automation Incorporated.