Al-Jibouri, M.N. and Hasun, S.M. 2015. Synthesis and characterization of manganese(II), cobalt(II), nickel(II), copper(II) and zinc(II) complexes with new Schiff base derived from 6,7-dimethyl-quinoxaline-2,3(1H,4H)-dione and thiosemicarbazide. European Journal of Chemistry. 6, 1 (Mar. 2015), 44–47. DOI:https://doi.org/10.5155/eurjchem.6.1.44-47.1140.