1. 1) Heterogeneity Sub-Committee of the British Iron and Steel Institute: J. Iron Steel Inst., 113 (1926), 39.
2. 2) A. Hultgren: J. Iron Steel Inst., 120 (1929), 69.
3. 3) E. Marburg: JOM, (1953), 157.
4. 4) Physical Chemistry of Steelmaking Committee: Basic Open Hearth Steelmaking, ed. by G. Derge, AIME, NY, (1964).
5. 5) Joint Committee of the Iron and Steel Institute and the British Iron and Steel Federation: J. Iron Steel Inst., 35 (1937), 12.