1. Importance and definition of materials in tribology;Buckley,1984
2. Importance of properties of solids to friction and wear behaviour;Czichos,1984
3. The wear of metals under unlubricated conditions;Archard,1956
4. The formation of surface films at the transition between mild and severe metallic wear;Lancaster,1963
5. The dry wear of steels;Welsh;Philos. Trans. R. Soc. London, Ser. A,1964