1. Catalog of Friction and Wear Devices, American Society of Lubrication Engineers.
2. Synopsis of results from an international cooperative wear program;Begelinger;Lubric. Eng.,1970
3. Einfluss von Schwingungen auf die Verschleisseigenschaften eines Reibsystems;Broszeit;Wear,1974
4. Friction and Wear;Kragelskii,1965
5. J. Mølgaard and V. K. Srivastava, The role of symmetry in wear tests, to be published.