1. 7) M.R.Ozgu, D.N.Rego, T.J.Conarty, E.G.Bauer and J.F.McDermott : Proc. of Steel-Making Cofe., ISS, Warrendale, (1990), 221.
2. 8) W.A.Tony : Iron Steelmaker, 17 (1990)Jan., 22.
3. 9) M.Kolakowski : 1st European Conf. on Continuous Casting, (1991), 23.
4. 10) S.Selldin, T.Thoren, A.Flick, K.Engel and G.Holleis : Proc. of Electric Furnace Conf., BS, Warrendale, (1989), 79.
5. 11) F.K.Iverson and K.Busse : Metallurgical Plant Technology International, Verlag Stahleisen, Dusseldorf, 14 (1991)1, 40; 51.