1. J. W. S. Hearle, B. Lomas, W. D. Cooke andI. J. Duerden, ?Fibre Failure and Wear of Textiles? (Ellis Horwood, Chichester) to be published.
2. J. W. S. Hearle andM. Miraftab, to be published.
3. B. C. Goswami,Textile Res. J. 46 (1976) 55.
4. J. W. S. Hearle andB. S. Wong,J. Phys. E 10 (1977) 448.
5. S. F. Calil andJ. W. S. Hearle, in ?Proceedings of 4th International Conference on Fracture?, Vol. 2, Waterloo, Canada, June 1977, edited by D. M. R. Taplin (Pergamon, New York, 1978) p. 1267.