1. Krainer, H., Arch. Eisenhuttenwesen, 22, 53 (1951).
2. Lashko, N. F., Zhurnal Teknechecheskoi Fiziki, 24, 884 (1954). Brutcher Translation No. 3718.
3. Krisement, O., Arch. Eisenhuttenwesen, 29, 723 (1958); 27, 731 (1956).
4. Roberts, C. S., Averbach, B. L., and Cohen, M., Trans. Amer. Soc. Met., 45, 576 (1953).
5. Kurdyumov, G., and Lysak, L., Zhurnal Tekhnecheskoi Fiziki, 19, 525 (1949). Brutcher Translation No. 3041.