1. 1) M. Onishi and K. Fukumoto: J. Japan Inst. Metals, 38 (1974), 148.
2. 2) S. U. Campisano, G. Foti, E. Rimini, S. S. Lau and J. W. Mayer: Phil. Mag., 31 (1975), 903.
3. 3) G. Majni, C. Nobili, G. Ottaviani and M. Costato: J. Appl. Phys., 52 (1981), 4047.
4. 4) K. Hirano: Point Defects and Defect Interactions in Metals, Ed. by J. Takamura, M. Doyama and M. Kiritani, University of Tokyo Press, Tokyo, (1982), p. 541.
5. 5) Ch. Herzig, H. J. Rockosch and R. Hilgedieck: DIMETA-82, Diffusion in Metals and Alloys, Ed. by F. J. Kedves and D. L. Beke, Trans Tech Publications, Switzerland, (1983), p. 330.