1. 6) Holzgruber, TARMANN: Steel Times, 195 (1957), p.217
2. 8) MORTON: Metallurgical Rev, 9 (1964), p.121
3. 9) FLEMING, et al.: Mod. Casting, 47 (1965), p.84
4. 10) Bower, FLEMING: Trans. Met. Soc. AIME, 236 (1966), p.624
5. 14) Kattamis FLEMING: Trans. Met. Soc. AIME, 233 (1965), p.992