1. R. C. Novak and M. A. De Crescente, in ?Composite Materials: Testing and Design?, ASTM STP 497 (American Society for Testing and Materials, Philadelphia, Pa., 1972) pp. 9.
2. C. C. Chamis, M. P. Hanson and T. T. Serafini, ibidin ? pp. 324?349.
3. J. W. Moore and D. L. G. Sturgeon, Composites 4 (1973) 34.
4. R. H. Toland, ASTM Symposium on Instrumented Impact Testing, Philadelphia, Pa., (June 1973).
5. P. W. R. Beaumont, P. G. Riewald and C. Zweben, in ?Foreign Object Impact Damage to Composites?, ASTM 568 (American Society for Testing and Materials, Philadelphia, Pa., 1975).