1. Ya. A. Kraftmakher, High Temp. High Press. 5:433 (1973).
2. Ya. A. Kraftmakher, High Temp. High Press. 5:645 (1973).
3. M. Kawai, T. Tahira, K. Kitagawa, and T. Miyakawa, Appl. Phys. Lett. 33:9 (1978).
4. Ya. A. Kraftmakher and E. B. Lanina, Fiz. Tverd. Tela. 7:123 (1965).
5. D. Himmelblau, Process Analysis by Statistical Methods (New York, John Wiley and Sons, 1974), p. 270.