1. ESP Project. http://sqrl.eecs.utk.edu/esp/index.html
2. The Mathworks. http://www.mathworks.com/products/simulink
3. Using assertions about traces to write abstract specifications for software modules;Bartussek,1978
4. From requirements to statistical testing of embedded systems;Bauer,2007
5. Academia and industry meet: Some experiences of formal methods in practice;Broadfoot,2003