M. Baumann, F. Bauer, and W. Haas. Papers presented at 23rd International Conference Fluid Sealing, Manchester, United Kingdom: 2nd-3rd March 2015, page 85-96. BHR Group, (2016)
E. Burwitz-Melzer, G. Mehlhorn, C. Riemer, K. Bausch, and H. Krumm. UTB ; 8043. Fremdsprachendidaktik, Sprachwissenschaft, Pädagogik A. Francke Verlag, Tübingen, 6., völlig überarbeitete und erweiterte Auflage edition, (2016)UB Stadtmitte.
P. Zeiler, F. Müller, and B. Bertsche. Risk, Reliability and Safety : Innovating Theory and Practice : Proceedings of the 26th European Safety and Reliability Conference, ESREL 2016 Glasgow, Scotland, 25-29 September 2016, page 313-320. CRC Press, (2016)