1. F. Seitz and T. A. Read, “The Theory of the Plastic Properties of Solids, IV,” J. Appl. Phys. 12: 538 (1941).
2. W.D. Kingery, Introduction to Ceramics, John Wiley and Sons, (New York), 1960, pp. 119–201.
3. S. Amelinckx and W. Dekeyser, “The Structure and Properties of Grain Boundaries,” in: F. Seitz and D. Turnbull (eds.), Solid State Physics, Vol. 8, Academic Press, (New York), 1959, pp. 325–499.
4. R. Scheuplein and P. Gibbs, “Surface Structures of Corundum: 1, Etching of Dislocations,” J. Am. Ceram. Soc. 43(9): 458–472 (1960).
5. W. L. Phillips, “Deformation and Fracture in CaF2 Single Crystals,” J. Am. Ceram. Soc. 44(10): 499–506 (1961).