F. Bauer, M. Baumann, and W. Haas. Proceedings of 16th Nordic Symposium on Tribology - NORDTRIB 2014, page 239. Danish Technological Institute, (2014)532.
M. Remppis, F. Bauer, and W. Haas. FVA-Heft / Forschungsvereinigung Antriebstechnik e.V. FVA, Forschungsvereinigung Antriebstechnik e.V., (November 2013)506.
P. Schuler, and W. Haas. Papers presented at 23rd International Conference Fluid Sealing, Manchester, United Kingdom: 2nd-3rd March 2015, page 147-161. BHR Group, (2016)587.
X. Jia, S. Jung, W. Haas, and R. Salant. Society of Tribologists and Lubrication Engineers annual meeting & exhibition 2011, page 270-273. Curran, (2011)413.