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2. T. Robinson, W.G. Davenport, and J. Jenkins, “Electrolytic Copper Electrowinning and Solvent Extraction World Operating Data” (Paper presented at Randol Copper Hydromet Roundtable, Vancouver, B.C., Canada, 1997).
3. W.G. Davenport et al., “Electrolytic Copper—Leach, Solvent Extraction, Electrowinning of Copper—1999 World Operating Data,” Copper 99—Cobre 99, Vol. IV, ed. S.K. Young et al. (Warrendale, PA: TMS, 1999), pp. 493–566.
4. W.G. Davenport et al., Extractive Metallurgy of Copper, Fourth Edition (Oxford, England: Pergamon Press, 2002).
5. Die Welt der Metalle Kupfer (The World of Metals, Copper) (Frankfurt am Main, Germany: Metallgesellschaft AB, 1993).