1. 2) Reports on Heterogeneity of Steel Ingots: JISI, 113 (1926), p.39
2. 4) C. BENEDICKS: JISI, 117 (1928), p.557
3. 7) A. HULTGREN: JISI, 120 (1929), p.69
4. 8) Basic Open Hearth Steel Making, AIME, (1944), p.434
5. 10) F. BADENHEUR: Stahl u. Eisen, 54 (1934), p.1073