1. IBM Rational Rhapsody Architect, Version 7.5.5,
http://www-01.ibm.com/software/rational/products/rhapsody/swarchitect/
2. IBM Rational Software Architect, RealTime Edition, Version 7.5.5,
http://publib.boulder.ibm.com/infocenter/rsarthlp/v7r5m1/index.jsp
3. Scade Suite,
http://www.esterel-technologies.com/products/scade-suite/
4. Unified Modeling Language (UML 2.0) Superstructure,
http://www.uml.org/
5. Alur, R., Kanade, A., Ramesh, S., Shashidhar, K.C.: Symbolic analysis for improving simulation coverage of Simulink/Stateflow models. In: EMSOFT 2008 (2008)