1. Fraunhofer-Institut fur Produktionstechnik und Automatisierung IPA Prof. Dr.-Ing. Thomas Bauernhansl, Michael Lickefett, 2014.
2. Cyber-Physical Systems - a Concept Map, http://cyberphysicalsystems.org/.
3. INDUSTRIE 4.0-Smart Manufacturing for the Future (Germany Trade and Invest, 2013).
4. Industry 4.0 - The new industrial revolution Roland Berger, https://www.rolandberger.com/en/Publications/pub_industry_4_0_the_new_industrial_revolution.html.