1. C. Wagner: Diffusion and High Temperature Oxidation of Metals. Atom Movements (1951) p. 153. ASM. See also Ztsch. Physik, Chem. (1933) B21, p. 25.
2. K. Nagel and C. Wagner: Ztsch. Physik. Chem. (1934) B25, p. 71.
3. C. Wagner: Ztsch. Physik. Chem. (1936) B32, p. 447.
4. C. Wagner and K. Gruenewald: Ztsch. Physik. Chem. (1938) B40, p. 455.
5. M. H. Davies, M. T. Simnad, and C. E. Birehenall: Trans. AIME (1951) 191, p. 889; Journal of Metals (October 1951).