G. Baitinger, and W. Haas. Proceedings of the 15th International Sealing Conference (ISC), page 97-108. Ebelsbach, Leithner Media Production, (2008)344.
G. Baitinger, and W. Haas. Sealing systems - cutting edge technology in the smallest envelope, page 341-350. Fachverband Fluidtechnik im VDMA e. V., (2010)398.
F. Bauer, M. Baumann, and W. Haas. Proceedings of 16th Nordic Symposium on Tribology - NORDTRIB 2014, page 239. Danish Technological Institute, (2014)532.