Yenikaya, Cengiz, et al. “Synthesis of a Imine Vic-Dioxime Ligand and Its Ni(II), Co(II), Cu(II) Complexes”.
Asian Journal of Chemistry
, vol. 20, no. 7, Mar. 2010, pp. 5651-7, https://asianpubs.org/index.php/ajchem/article/view/12907.