1. E. Schürmann, U. Hensgen, and J. Schweinichen:Giesserei-forschung, 1984 vol. 36, pp. 121–29.
2. V. Raghavan:J. Alloys Phase Diagrams, 1986, vol. 2, pp. 97–107.
3. S.-C Chueh and J.F. Smith:CALPHAD, 1987, vol. 11, pp. 149–58.
4. P. Gustafsson:Scand. J. Metall., 1985, vol. 14, pp. 259–67.
5. I. Ansara: Laboratoire de Thermodynamique Chimique des Matériaux, Grenoble, France, unpublished research, 1989.