M. A. Ayoub, E. H. Abd-Elnasser, M. A.-A. Ahmed, and M. G. Rizk, “Synthesis, physicochemical, thermal, fluorescence and catalytic activity studies of novel Mn(II), Co(II), Ni(II) and Cu(II) complexes with tridentate (ONS) Schiff base ligand”, Eur. J. Chem., vol. 8, no. 1, pp. 85–95, Mar. 2017.