1. C. S. Barrett and T. B. Massalaski:Structure of Metals, Third Ed., McGraw-Hill Book Company, New York, 1966.
2. H. W. Babel and S. F. Frederick:J Metals, 1968, vol. 20, p. 32.
3. B. R.Tittmamr:Rev. Sci. Instrum., 1971,vol. 42, pp. 1136–42.
4. G. A. Alers and Y. C. Liu:Trans. ASME, 1966, vol. 236, p. 482.
5. P. R. Morris:Int. J. Engr. Sci., 1970, vol. 8, p. 49.