Karabocek, Nevin, et al. “Synthesis, Characterization and Biochemical Activity of Dinuclear Cu(II) Ni(II) Co(II) and Tetranuclear Cu(II) Complexes of Schiff Base”. Asian Journal of Chemistry, vol. 24, no. 1, Sept. 2011, pp. 387-90, https://asianpubs.org/index.php/ajchem/article/view/15962.