1. Electrical Contacts;Holm,1946
2. Metallic wear;Burwell,1952
3. Contact and rubbing of flat surfaces;Archard;J. Appl. Phys.,1953
4. A technique for the selection of metals for wear during sliding on an abrasive surface;Krushchov;Izv. Akad. Nauk SSSR,1941
5. Friction and Wear of Materials;Rabinowicz,1965