1. Y. Kimura, H. Ueda, K. Shimasaki, H. Ito. Effects of humidity on friction and wear of a PTFE-based composite, J. Japan Soc. Lubr. Eng. 31(9) (1986) 643-649.
2. Zhaozhu Zhang, Qunji Xue, Weichang Shen, Weimin Liu. Friction and Wear Properties of PTFE Composites Filled by Metals (in Chinese), Polym. Mater. Sci. Eng. 15(1) (1999) 68-72.
3. Gang Chen, Ming-hua Jiao, Ting Xie, Jian-wei Yu. Effects of Fillers on the Tribological Properties of Polytetrafluoroethylene Based Composites (in Chinese), Bearing (10) (2007) 42-45.
4. S. Bahadur, D. Tabor. The wear of filled polytetranuoroethylene, Wear 98 (1984) 1-13.
5. J. Brandrup, E.H. Immergut, E.A. Grulke. Polymer Handbook, NewYork Wiley-Interscience, (1999).