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2. 2) H. HOLIDAY and J. W. NEUNAN : IISI Panel Discussion "A new-way from ore to Steel", South Africa (1973) Oct.
3. 3) A. J. BOOTE : Preprints of AISE Rolling Mill Conference (1977)
4. 4) J. MURAKI, N. NISHIDA, N. OTSUKI, Y. HARA and K. HACHISUKA : Nippon Steel Technical Report No. 12(1978) Dec.
5. 5) Metal Bull Monthly (1983) May, p.5