Choong, Chen-Shang, et al. “Synthesis, Characterization and Antibacterial Activity of Organotin(IV) Complexes Derivatives of 2-Chloro-4-Nitrobenzoic Acid”. Asian Journal of Chemistry, vol. 26, no. 10, May 2014, pp. 2949-53, doi:10.14233/ajchem.2014.16066.