1. R. Vogel and W. Döring:Arch. Eisenhüttenwes., 1935–36, vol. 9, pp. 247–52.
2. M. Isobe:Sci. Rep. Res. Inst., Tohoku University, Sendai, Japan, 1951, Ser. A, vol. 3, pp. 468-90.
3. K. Kuo and L.E. Persson:J. Iron Steel Inst., 1954, vol. 178, pp. 39–44.
4. Robert Benz, John F. Elliott, and John Chipman:Metall. Trans., 1973, vol. 4, pp. 1449–52.
5. T.B. Massalski:Binary Alloy Phase Diagrams, 1st ed., ASM, Metals Park, OH, Oct. 1986, p. 575.