R. Neßelrath, T. Becker, M. Reiplinger, and T. Schwartz. Intelligente Vernetzung in der Fabrik: Industrie 4.0 Umsetzungsbeispiele für die Praxis, Fraunhofer Verlag, Stuttgart, (2015)
A. Kröner, P. Gebhard, L. Spassova, G. Kahl, and M. Schmitz. Workshops Proceedings of the 5th International Conference on Intelligent Environments, volume 4 of Ambient Intelligence and Smart Environments, page 21--26. Amsterdam, IOS Press, (2009)
D. Cram, A. Kröner, and A. Mille. Workshops Proceedings of the 5th International Conference on Intelligent Environments, volume 4 of Ambient Intelligence and Smart Environments, page 45--50. Amsterdam, IOS Press, (2009)