1. Arends J, Hartog H W G and Dekker A J 1965Phys. Status Solidi 10 105
2. Bhimasankaram T 1974Studies of NaCl-NaBr mixed crystals, Ph.D. Thesis, Osmania University, Hyderabad
3. Chin G Y 1975Deformation of ceramic materials (New York: Plenum)
4. Garland C W, Leung R C and Zahradnik C 1979J. Chem. Phys. 71 3158
5. Geeta Krishna P 1997Studies on some alkali halide crystals, Ph.D. Thesis, Kakatiya University, Warangal