1. 1) Rice, J. R. & Tracy, D. M.:J. Mech. Phys. Solid, 7 (1969), 201-217.
2. 2) Bao, Y. & Wierzbicki, T.:Int. J. Mech. Sci., 46 (2004), 81-98.
3. 3) Hancock, J. W. & Mackenzie, A. C.:J. Mech. Phys. Solid, 24 (1976), 147-169.
4. 4) Yoshida, Y., Yukawa, N. & Ishikawa, T.:Proc. of 8th NUMIFORM, (2004), 1869-1874.
5. 5) Bridgman, P. W.:Studies in Large Plastic Flow and Fracture, (1952), 9-32, McGrawHill.