M. N. Al-Jibouri, T. M. Musa, and A. H. Ismail, “Synthesis and Spectroscopic Study of Some Transition Metal Complexes with New Pyrazolinone Ligand Derived from 2-Hydrazino Quinoxaline-3-one”, ajc, vol. 30, no. 9, pp. 2017–2021, Jul. 2018.