P. Schuler, und W. Haas. Papers presented at 23rd International Conference Fluid Sealing, Manchester, United Kingdom: 2nd-3rd March 2015, Seite 147-161. BHR Group, (2016)587.
S. Schmuker, und W. Haas. Proceedings of the 14th International Sealing Conference (ISC), Seite 114-123. Ebelsbach, Leithner Media Production, (2006)297.
H. Haiser, und W. Haas. Proceedings of the 16th International Conference on Fluid Sealing, Seite 19–27. Bury St. Edmunds, Professional Engineering Publications, (2000)185.
M. Klaiber, F. Bauer, und W. Haas. Society of Tribologists and Lubrication Engineers annual meeting and exhibition 2010, Seite 220-223. Curran, (2010)389.
X. Jia, S. Jung, W. Haas, und R. Salant. Society of Tribologists and Lubrication Engineers annual meeting & exhibition 2011, Seite 270-273. Curran, (2011)413.
J. Reibert, W. Haas, und C. Simader. Sealing systems - cutting edge technology in the smallest envelope, Seite 88-98. Fachverband Fluidtechnik im VDMA e.V., (2010)403.
J. Gölz, W. Goujavin, F. Bauer, und W. Haas. Sealing systems - challenges for the future, Seite 685–699. Fachverband Fluidtechnik im VDMA e. V., (2012)461.