1. P. G. Shewmon, Diffusion in Solids, Chapters 2, 4, 5. (McGraw-Hill, New York, 1963)
2. B. I. Boltaks, Diffusion in Semiconductors, Chapter 2. (Infosearch, London, 1963)
3. Y. Adda, J. Phillibert, La Diffusion dans les Solides, Vol.2, Chapter 13. (Presses Universitaires de France, Paris, 1966)
4. L. A. Girifalco, Atomic Migration in Crystals, Appendix D. (Blaisdell Publishing Company, New York, 1964)
5. H. B. Huntington, P. B. Ghate and J. H. Rosolowski, J. appl. Phys., 35, 3027 (1964)