1. 1) G. H. Morrison, H. Freiser: “Solvent Extraction in Analytical Chemistry”, p. 59 (1957), (John Wiley & Sons, New York).
2. 2) Y. Marcus, A. S. Kertes: “Ion Exchange and Solvent Extraction of Metal Complexes”, p. 425 (1969), (Wiley-Interscience, New York).
3. 3) J. Ryberg, C. Musikas, G. R. Choppin: “Principles and Practices of Solvent Extraction”, p. 209 (1992), (Mercel Dekker, New York).
4. Theory of ion-pair extraction in terms of standard ion-transfer potentials of individual ions.