1. 1) B.G.Baldwin : J. Iron Steel Inst., (1955) Jan., 30.
2. 2) K.Otsuka and D.Kunii : J. Chem. Eng. Jpn., 2 (1969), 46.
3. 3) C.Bryk and W-K.Lu : Ironmaking Steelmaking, 13 (1986), 70.
4. 4) W-K.Lu and D.F.Huang : ISIJ Int., 41 (2001), 807.
5. 5) M.Takahashi, H.Oda, T.Ibaragi, H.Otsuka, T.Takashima and S.Nonoyama : CAMP-ISIJ, 14 (2001), 149.