1. 1) S. Hayami and T. Furukawa: Proc. Microalloying 75, TMS-AIME, Warrendale, PA, (1975), 78.
2. 2) Structure and Properties of Dual-Phase Steels, 108th AIME Meeting, ed. by R. A. Kot and J. W. Morris, TMS-AIME, Warrendale, PA, (1979).
3. 3) Fundamentals of Dual-Phase Steels, 110th AIME Meeting, ed. by R. A. Kot and B. L. Bramfitt, TMS-AIME, Warrendale, PA, (1981).
4. 4) Y. Tomota and I. Tamura: Bull. Jpn. Inst. Met., 14 (1975), 657 (in Japanese).
5. 5) T. Furukawa: Bull. Jpn. Inst. Met., 19 (1980), 439 (in Japanese).