Wang, Hui-Yu, et al. “Synthesis and Structures of Mononuclear Co(III) and Cu(II) Complexes Derived from N-[2-(2-Hydroxy-3-methoxybenzylideneamino)cyclohexyl]-2-Hydroxybenzamide”. Asian Journal of Chemistry, vol. 26, no. 3, Jan. 2014, pp. 733-5, doi:10.14233/ajchem.2014.15501.