1. J. Aveston, G. A. Cooper, and A. Kelly, ?The Properties of Fibre Composites?, Conference Proceedings, National Physical Laboratory (IPC Science and Technology Press Ltd, 1971) Paper I, p. 15.
2. H. G. Allen, J. Comp. Mat. 5 (1971) 194.
3. A. Majumdar, Proc. Roy. Soc. A319 (1970) 69.
4. H. G. Allen, ?The Properties of Fibre Composites?, Conference Proceedings, National Physical Laboratory, (IPC Science and Technology Press Ltd, 1971) p. 25.
5. J. Aveston, ibid, Paper 5, p. 63.