1. ‘Importance of properties of solids to friction and wear behaviour’;Czichos,1983
2. ‘Wear of machine components’;Kragelskii;Trans. ASME, J. Lub. Techn.,1984
3. ‘Wear-A critical synoptic view’;Tabor;Trans. ASME, J. Lub. Techn.,1977
4. ‘Contact and rubbing of flat surfaces’;Archard;J. Appl. Phys.,1953
5. ‘The wear coefficient-magnitude, scatter, uses’;Rabinowicz;Trans. ASME, J. Lub. Techn.,1981