M. Barz, M. Moniri, M. Weber, and D. Sonntag. Adjunct Proceedings of the 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp '16), Heidelberg, Germany, page 17--20. New York, ACM, (2016)
W. Bauer, B. Dworschak, and H. Zaiser. Handbuch Industrie 4.0 Bd.\, 1: Produktion, Springer, Berlin, 2 edition, DOI: 10.1007/978-3-662-45279-0\_36.(2017)
V. Bryl, C. Giuliano, L. Serafini, and K. Tymoshenko. The Semantic Web -- ISWC 2010: 9th International Semantic Web Conference, Shanghai, China, Revised Selected Papers, Part I, volume 6496 of Lecture Notes in Computer Science, Springer, Berlin, (2010)
L. Chen, J. Hoey, C. Nugent, D. Cook, and Z. Yu. IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews, 42 (6):
790-808(November 2012)