1. F. P. Bowden and D. Tabor, The Friction and Lubrication of Solids (Clarendon Press, Oxford, 1986).
2. I. L. Singer, R. N. Bolster, J. Wegand, S. Fayeulle and B. C. Stupp, Appl. Phys. Lett. 57 (1990) 995.
3. B. Rosemann, C. Schaufler, H. Meerkamm, Proceedings of First International Conference on Tribology in Environmental Design, Bournemouth, UK (2000) p. 25.
4. H. Takebayashi, KOYO Engineering J. Engl. Edition 157E (2000) 58.
5. Y.-R. Liu, J.-J. Liu and Z. Du, Wear 231 (1999) 285.