A. Buck, S. Nebel, and B. Bertsche. Special issue: selected papers from the 21st International Conference on Production Research, volume 50 of International journal of production research, page 6059-6201. Taylor & Francis, (2012)187.
P. Fietkau, A. Baumann, and B. Bertsche. Proceedings of the ASME/STLE International Joint Tribology Conference - 2011, page IJTC2011-61030, 179-182. ASME, (2011)
H. Schröpel, B. Bertsche, and L. Hörl. Proceedings of the 12th International Sealing Conference, page 176-191. Frankfurt, VDMA Fachverband Fluidtechnik, (2002)215.