Sztipanovits, J., Koutsoukos, X., Karsai, G., Kottenstette, N., Antsaklis, P., Gupta, V., … Wang, S. (2012). Toward a Science of Cyber–Physical System Integration. Proceedings of the IEEE, 100, 29–44. http://doi.org/10.1109/JPROC.2011.2161529 (Original work published January 2012)