1. Adolph, L., Anlahr, T., Bedenbender, H., Bentkus, A., Brumby, L., Diedrich, C., … Mehrfeld, J. (2016). German Standardization Roadmap Industry 4.0 Retrieved July 13, 2017.
2. Adolphs, P., Bedenbender, H., Dirzus, D., Ehlich, M., Epple, U., Hankel, M., .. Wollschlaeger, M. (2015). Reference Architecture Model Industrie 4.0 (RAMI 4.0). VDI/VDE and ZVEI. Retrieved from https://www.zvei.org/en/subjects/industry-4-0/the-reference-architectural-model-rami-40-and-the-industrie-40-component/.
3. ANSI/IEEE610.12:1990 (1990). Standard glossary of software engineering terminology.
4. ANSI/ISA-95.00.01-2010 (2010). Enterprise-control system integration − Part 1: Models and terminology.
5. Internet of things: Applications and challenges in technology and standardization;Bandyopadhyay;Wireless Personal Communications,2011