1. C.P. Flynn, “Point Defects and Diffusion”, (Oxford University Press, London, 1972).
2. B. Henderson, “Defects in Crystalline Solids”, (Edward Arnold, London, 1972).
3. F. A. Kroger, “The Chemistry of Imperfect Crystals”, (North-Holland, New York, 1973).
4. P. A. Varotsos and K.D. Alexopoulos, “Thermodynamics of Point Defects and their Relations with Bulk Properties”, (North-Holland, New York, 1986).
5. P.G. Shewmon, “Diffusion in Solids”, (McGraw-Hill, New York, 1963).