Hussain, Habib, et al. “Synthesis and Antibacterial Activity of Zn(II) Schiff Base Complexes Derived from 3-Acetyl-2H-Chromen-2-One”. Asian Journal of Chemistry, vol. 27, no. 9, May 2015, pp. 3440-4, doi:10.14233/ajchem.2015.18720.