1. A. Luraschi and J. F. Elliott:Trans. Inst. Min. Metall., 1980, vol. 89, pp. C14-C25.
2. K. C. Mills:Thermodynamic Data for Inorganic Sulfides, Selenides and Tellurides, Butterworths, London, 1974.
3. H. Rau:J. Chem. Thermodynamics, 1975, vol. 7, pp. 27–32.
4. I. Barin, O. Knacke, and O. Kubaschewski:Thermodynamicalprop- erties of inorganic substances, Springer-Verlag, Berlin and New York, NY, 1973, Supplement 1977.
5. F. Kohl, M. Vy, and D. Carlson:The]. of Chem. Phys., 1967, vol. 47, pp. 2667–76.