Verma, R.; Mishra, B.; Satpathy, K.; Mahapatra, A. Synthesis and Characterization of Mono and Homo-Dinuclear, Cobalt(II), Nickel(II) and Copper(II) Complexes of the Schiff Base Derived from 3-Formylsalicyclic Acid and Hydroxylamine Hydrochloride . ajc 2010, 9, 365-371.