1. 7) H. SCHENCK, E.S TEINMETZ, and H. GITIZARD: Arch. Eisenhüttenw., 40 (1969), p.597
2. 8) M.G. IFROHPERG, J.F. ELLIOTT, and H.G. HADRYS: Arch. Eisenhüttenw., 39 (1968), p.587
3. 9) H.O. HADRYS, M.G. FROHBERG, and J.F. ELLIOTT: Met. Trans, 1 (1970), p.1867
4. 11) A. MITCHELL: Trans. AIME, 242 (1968), p.2507
5. 14) J.F. ELLIOTT and M. GLEISER: Thermochemistry for steelmaking vol. 1 (1960), Addison-Wesley Pub.