1. Flett DS, Cox M, Melling J (1991) In: Lo TC, Baird MHI, Hanson C (eds) Handbook of Solvent Extraction. Krieger Publishing Company, Malarbar-Florida, pp 629–647
2. Mühl P, Gloe K (1989) Chem Techn 41:457–462
3. Marr R, Draxler J (1988) Chem Ing Techn 60:348–359
4. Cox M, Flett DS (1979) Proc Int Solv Extr Conf, ISEC 1977, CIM Spec Vol 21:63–72
5. Ashbrook AW (1975) Coord Chem Rev 16:285–307