1. 6) V. Ya. BELOGUROV, L. M. IZRAILEV, V. S. KUDRYAVTSEV, V. V. PONOMARENKO and S. A. PCHELKIN : Steel in USSR (1972) 7, p. 511
2. 7) L. B. MCRAE and F. K. SIEBRITS : Nat. Inst. Metall., Rep. No. 1724 (1975)
3. 8) R. H. NAFZIGER, P. E. SANKER, J. E. TRESS and R. A. MCCUNE : Ironmaking Steelmaking, 9 (1982), p. 267
4. 14) H. G. KATAYAMA and M. TOKUDA : Trans. ISIJ, 20 (1980), p. 154
5. 17) V. CROFT : Metall. Trans., 10B (1979), p. 121