1. F. P. Bowden and D. Tabor, The Friction and Lubrication of Solids, Clarendon Press, Part 1, 315–321 (1971).
2. E. Rabinowicz, Friction and Wear of Materials, Wiley, New York, 72, 86 (1965).
3. W. E. Hanford and R. M. Joyce, P.T.F.E., Am. Chem. Soc., 68, 2082 (1946).
4. C. M. Pooley and D. Tabor, Nature Phys. Soc., 237, 88 (1972).
5. F. Chevassus and R. de Broutelles, The Stabilization of Polyvinyl Chloride, 109, Arnold, (1963).