M. Kopp, D. Hofmann, B. Bertsche, C. Heß, and O. Fritz. Proceedings of the 18th International Conference on Engineering Design, volume 10 of ICED11, page 209-220. Design Society, (2011)188.
D. Hofmann, M. Kopp, and B. Bertsche. 16th ISSAT International Conference on Reliability and Quality in Design, page 163-168. Internat. Soc. of Science and Applied Technologies, (2010)176.
D. Hofmann, M. Kopp, and B. Bertsche. IEEE/ASME International Conference on Advanced Intelligent Mechatronics, (AIM 2010), page 1263-1268. IEEE / Institute of Electrical and Electronics Engineers Incorporated, (2010)175.