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2. L. A. Carlsson, ed. ?Thermoplastic Composite Materials? (Elsevier, Oxford, 1991) p. 103.
3. LNP Engineering Plastics Inc, ?A Guide to LNP's Internal Lubricated Thermoplastics? (LNP, USA, 1994) pp. 1?10.
4. M. J. Folkes, Short Fibre Reinforced Thermoplastics (Wiley, Chichester, 1982) p. 1.
5. H. Voss andK. Friedrich,Wear 116 (1987) 1.