1. 1) H. Todoroki and S. Inada: Bull. Iron Steel Inst. Jpn., 8 (2003), 575 (in Japanese).
2. 2) H. Todoroki and N. Shiga: Proc. 4th Int. Congr. on the Science and Technology of Steelmaking (ICS2008), ISIJ, Tokyo, (2008), 121.
3. 3) H. Todoroki and Y. Kobayashi: Proc. 4th Asia Steel Int. Conf. 2009, KIMM, Seoul, (2009), CD-ROM.
4. 4) J. H. Park and H. Todoroki: ISIJ Int., 50 (2010), 1333.
5. 5) V. Brabie: ISIJ Int., 36 (1996), suppl., S109.