K. Agarwal, S. Studies on Mixed Ligand Complexes of Oxovanadium(IV) With 2-(3´ -Phenyl-5´ -Chloro Indole-2´ -Carboxamidyl)Iminomethyl Furan As Primary and 2-Carboxyphenyl-Azo-Β-Naphthyl Amine As Secondary Ligand. ajc 2010, 16, 467-470.