1. IEC 61131-3: Programmable Controllers-Part 3: Programming Languages, Geneva: International Electrotechnical Commission, 2003, 2nd ed., vol. 1.
2. Basile, F., Chiacchio, P., and Gerbasio, D., On the implementation of industrial automation systems based on PLC, IEEE Trans. Autom. Sci. Eng., 2012, vol. 10, no. 4, pp. 990–1003.
3. Travis, J. and Kring, J., LabVIEW for Everyone: Graphical Programming Made Easy and Fun, Upper Saddle River, NJ: Prentice Hall PTR, 2006, 3rd ed.
4. Zyubin, V., Using process-oriented programming in LabVIEW, Proceedings of the Second IASTED International Multi-Conference on Automation, Control, and Information Technology: Control, Diagnostics, and Automation, Novosibirsk, 2010, pp. 35–41.
5. Buxton, J.N. and Randell, B., Software engineering techniques, Conference Sponsored by the NATO Science Committee, Rome, 1970.