1. B. Fried,SESA Proc. 8, 143 (1951).
2. D. H. Morris and W. F. Riley,Exp. Mech. 12, 448 (1972).
3. C. P. Burger, A. K. Oyinlola, T. E. Scott,Metals Eng. Quarterly. Trans. ASME, 26 (1976).
4. K. Ito,Exp. Mech. 2, 373 (1962).
5. W. A. Brill, Ph. D Dissertation, Stanford University (1966).