Rai, H.C., and S.P. Chaudhary. “Copper(II) Complexes With 3,8-Diphenyl-3,7-Diene-4,7-Diaza-2,9-Decadihydroximine”. Asian Journal of Chemistry, vol. 8, no. 4, Mar. 2010, pp. 628-34, https://asianpubs.org/index.php/ajchem/article/view/24163.