1. 1) K. Mills: ISS Steelmaking Proc., ISS, Warrendale, PA, (1991), 121.
2. 2) M. Sus, K. Mills, M. Richardson, R. Taylor and D. Stewart: Ironmaking Steelmaking, 21 (1994), 279.
3. 3) M. Kawamoto, K. Hakari and T. Watanabe: CAMP-ISIJ, 10 (1997), 890.
4. 4) Y. Kashiwaya, C. E. Cicutti and A. W. Cramb: ISIJ Int., 38 (1998), 357.
5. 5) X. Wang and D. Wu: Iron Steel, 32 (1997), 750.