Umamaheswara Rao, B., Krishna, V. and Nageswara Rao, G. (2015) “Synthesis, Characterization and Antimicrobial Activity of Isomeric Pyridyl-Tetrazole Derivative Ligands and their Bivalent Metal Complexes”, Asian Journal of Chemistry, 27(12), pp. 4405–4410. doi: 10.14233/ajchem.2015.19144.