1. G.M. Ritcey, A.W. Ashbrook, Solvent Extraction. Principles and Applications to Process Metallurgy, Part II, Elsevier, Amsterdam, 1979.
2. Extraction of nickel, cobalt and other metals [Cu, Zn, Fe(III)] with a commercial β-diketone extractant
3. G. Thorsen, in: T.C. Lo, M.H.I. Baird, C. Hanson (Eds.), Handbook of Solvent Extraction, Wiley, New York, 1983.
4. Influence of temperature on the extraction of zinc by LIX 34