1. 1) Y. Adda and J. Philibert: La Diffusion dans les Solides, Presses Universitaires, Paris, (1966), p. 31.
2. 2) A. G. Guy, W. D. Cooper and R. L. Poole: Materials Science, 3 No. 4 (1977), 104.
3. 3) J. Bardeen and C. Herring: Atom Movements, American Society for Metals, Cleveland, Ohio, (1951), p. 103.
4. 4) J. R. Manning: Diffusion Kinetics for Atoms in Crystals, Van Nostrand, Princeton, N.J., (1968), p. 139.
5. 5) T. R. Anthony: Diffusion in Solids, A. S. Nowick and J. J. Burton, Eds., Academic Press, New York, (1975), p. 353ff.