K. Agarwal, S. 2010. 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. Asian Journal of Chemistry. 16, 1 (Mar. 2010), 467–470.