1. 1) S. Kohara and N. Mutoh: J. Japan Inst. Metals, 44 (1980), 271.
2. 2) S. Kohara, N. Mutoh and Y. Imanishi: J. Japan Inst. Metals., 43 (1979), 198.
3. 3) J. C. Viala, F. Bosselet, P. Fortier and J. Bouix: Proc. 6th Inter. Conf. on Composite Materials and 2nd Europ. Conf. on Composite Materials, Ed. F. L. Matthews, N. C. R. Buskell and J. Morton, Elsevier Applied Science, London and New York, (1988), vol. 2, p. 146.
4. 4) S. P. Rowal, L. F. Allard and M. S. Misra: Proc. 6th Inter. Conf. on Composite Materials and 2nd Europ. Conf. on Composite Materials, Ed. F. L. Matthews, N. C. R. Buskell and J. Morton, Elsevier Applied Science, London and New York, (1988), vol. 2, p. 169.
5. 5) H. L. Marcus, L. Rabenberg, L. D. Brown, G. Elkabir and Y. M. Cheong: Proc. 6th Inter. Conf. on Composite Materials and 2nd Europ. Conf. on Composite Materials, Ed. F. L. Matthews, N. C. R. Buskell and J. Morton, Elsevier Applied Science, London and New York, (1988), vol. 2, p. 459.