1. N. C. Judd, Proceedings of the 30th Anniversary Technical Conference, Reinforced Plastics/Composites Institute (Soc. Plast. Ind., Inc., New York, 1975) Section 18-A.
2. J. H. Powell and D. V. Zigrang, ?Proceedings of Conference on Environmental Effects? (Rockwell International Corporation, Tulsa, Oklahoma, 1976) p. 224.
3. J. C. Bowman, ?Handbook of Fiberglass and Advanced Plastics Composites?, edited by George Lubin (SPE Polymer Technology Series, 1969) Ch. 11.
4. Technical Report AFFDL-TR-76-142;R. M. Verrette,1977
5. C-H. Shen and G. S. Springer, J. Comp. Mater. 10 (1976) 1.