Hussain, M.; Shafiq, Z.; Hussain, A.; Yaqub, M.; Arshad, S.; Ashraf, M.; Abbasi, B.; Ahmad, H. Synthesis and Antioxidant and Antibacterial Activities of Metal-Based Schiff Bases of Nicotinoyl, Isonicotinoyl and Benzoyl Hydrazides. ajc 2012, 25, 2593-2596.