1. 3) N. J. GRANT, J. W. DOWDING, and R. J. MURPHY : J. Metals, 5 (1953), p. 1451
2. 5) S. V. SHABRIN and I. N. ZAKHAROV : IZV. VUZov, Cher. Met. (1964) 5, p. 7
3. 6) W. O. PHILBROOK and L. D. KIRKBRIDE : J. Metals, 8 (1956), p. 351
4. 7) S. K. TARBY and W. O. PHILBROOK : Trans. Met. Soc. AIME, 239 (1967), p. 1005
5. 14) E. M. LEVIN, C. R. ROBBINS, and H. F. MCMURDIE : Phase Diagram for Ceramists (1964) [The American Ceramic Society]