1. R. D. Deanin,Appl. Polym. Symp. 28 (1975) 71.
2. Usda, ?Wood Handbook? (US Printing Office, Washington, 1974) Chap. 21.
3. D. L. Miller,Appl. Polym. Symp. 28 (1975) 21.
4. K. K. Chawla andA. C. Bastos, in Proceedings of the 3rd International Conference on the Mechanical Behaviour of Materials, Cambridge, August 1979, edited by K. J. Miller and R. F. Smith (Pergamon Press, Toronto, 1979) p. 191.
5. J. Harris,Eng. Mater. Des. 14 (1971) 583.