1. Intensive care hotline, intubation,
http://intensivecarehotline.com/intubation/
2. Prover plug-in, prover,
http://www.prover.com/products/
3. User’s guide, the mathworks,
http://www.mathworks.com/products/
4. Alagar, V.S., Periyasamy, K.: Specification of software systems. Springer-Verlag New York Inc. (2011)
5. Behboodian, A.: Model-based design. DSP Magazine (May 2006)