1. K.I. Sugimoto, N. Ushi, M. Kobayashi, and S.I. Hashimoto: Iron Steel Inst. Jpn., 1992, vol. 32, p. 1311.
2. K.I. Sugimoto, N. Ushi, M. Kobayashi, and S.I. Hashimoto: Metall. Trans. A, 1992, vol. 23A, pp. 3085–91.
3. H.C. Chen, H. Era, and M. Shimizu: Metall. Trans. A, 1989, vol. 20A, pp. 4371–45.
4. S.K. Kim, H.C. Shin, J.H. Chung, and Y.W. Chang: J. Kor. Inst. Metall. Mater., 1998, vol. 36, p. 151.
5. C.G. Lee and S.J. Kim: J. Kor. Inst. Metall. Mater., 1998, vol. 36, p. 1024.