B. Jung, M. Latoschik, and I. Wachsmuth. IECON'98: Proceedings of the 24th annual Conference of the IEEE Industrial Electronics Society, 4, page 2152-2157. (1998)
M. Latoschik, M. Fröhlich, B. Jung, and I. Wachsmuth. IECON'98: Proceedings of the 24th annual Conference of the IEEE Industrial Electronics Society, 4, page 2028-2033. (1998)