1. N. Sano, S. Shiomi, and Y. Matsushita:Tetsu-to-Hagane, 1964, vol. 50, pp. 501–04.
2. W. L. Daines and R. D. Pehlke:Tram. TMS-AIME, 1968, vol. 242, pp. 565–75.
3. S. K. Tarby and W. 0. Philbrook:Trans. TMS-AIME, 1967, vol. 239, pp. 1005–1017.
4. T. Yagiand Y. Ono:Trans. Iron Steel Inst. Japan, 1970, vol. 10, no. l, pp. 36–37.
5. C. Wagner:Phys. Chem. Steelmaking, J. F. Elliott, ed., pp. 237–51, John Wiley & Sons, New York, 1958.