1. C. Wagner and S. Schottky, Z. Phys. Chem. B 11, 163 (1930).
2. A. Fry, Stahl Eisen, 1039 (1923).
3. V. Z. Bugakov, Diffusion in Metals and Alloys (Gostekhizdat, Leningrad, 1949) [in Russian].
4. W. Seith, Diffusion in Metallen (Springer, Berlin, 1955).
5. S. D. Gertsriken and I. Ya. Dekhtyar, Diffusion in Metals and Alloys in Solid Phase (GIFML, Moscow, 1960) [in Russian].