M. Henzler, und W. Haas. Proceedings of the 14th International Sealing Conference (ISC), Seite 137-151. Ebelsbach, Leithner Media Production, (2006)298.
L. Hörl, C. Pflüger, W. Haas, A. Laage, und M. Heine. Society of Tribologists and Lubrication Engineers annual meeting & exhibition 2011, Seite 253-260. Curran, (2011)409.