1. 3) M. Tokuda and M. Ohtani: The Operation of the Blast Furnace—Theory and Practice, Vol. 2, Institut de Recherches de la Siderurgie Francaise, Maizieresies-Metz, (1980), C.5.1.
2. 4) S. Taguchi, N. Tsuchiya, K. Okabe, H. Kubo and K. Ichifuji: Proc. of the 3rd Process Technology Conf., The Iron and Steel Society of AIME, Warrendale, PA, (1982), 25.
3. 5) E. Beppler, U. Janhsen and B. Gerstenberg: Ironmaking Proc., Vol. 43, ISS, Warrendale, PA, (1984), 449.