V. RUKMANI, K. PRACHI, and K. MANGOANKAR, “Potentiometric Study of Mixed Ligand Chelates of Transition Metal Ions with 5-Chlorosalicylidene-2-chlorobenzylamine as the Primary Ligand and 5-Chlorosalicylidene-4-aminobenzenesulphonamide as the Secondary Ligand”, ajc, vol. 20, no. 2, pp. 949–953, Mar. 2010.