Sahu, K., et al. “Synthesis and Characterization of Metal Complexes With Ligands Derived from 2,6-Diacetyl Pyridine Monoxime and 1,2-Diamino Benzene”. Asian Journal of Chemistry, vol. 17, no. 1, Mar. 2016, pp. 387-90, https://asianpubs.org/index.php/ajchem/article/view/19787.