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2. 2) T. Narita and K. Nishida: Proceedings of The 5th ICMC in Tokyo, (1972), to be published.
3. 3) C. Wagner: Atom Movements, ASM, Cleveland, Ohio, (1951), p. 153.
4. 4) K. Hauffe: Oxidation of Metals, Plenum Press, New York, (1965).
5. 5) K. Hauffe and A. Rahmel: Z. Phy. Chem., 119 (1952), 152.