1. R. D. Pehlke, Unit-Processes of Extractive Metallurgy. American Elsevier Publ. Co., New York (1973), pp. 7–23.
2. I. Iwasaki, A thermodynamic interpretation of the segregation process for copper and nickel ores, Minerals Sci. Eng. 4 (2), 14–23 (1972).
3. J. D. Gilchrist, Extraction Metallurgy, Pergamon Press, London (1967), pp. 169–171.
4. H. H. Kellogg, A critical review of sulfation equilibria, Trans. TMS-AIME 230, 1622–1634 (1963).
5. W. M. McKewan, Kinetics of iron oxide reduction, Trans. TMS-AIME 212, 791–794 (1958).