Gothwal, Y.K., et al. “Studies and Characterization of Mixed Ligand Complexes of Aluminium With (N— O) and (N&Mdash; S) Donor Ligands”. Asian Journal of Chemistry, vol. 18, no. 4, Mar. 2010, pp. 2809-12, https://asianpubs.org/index.php/ajchem/article/view/20690.