NANJAN, M.J., et al. “Synthesis and Antimicrobial Screening of 4-(3-Chloro-2- Oxo-4-Substituted Phenylazetidine-1-yl)benzoic Acids”. Asian Journal of Chemistry, vol. 19, no. 5, Mar. 2010, pp. 3607-11, https://asianpubs.org/index.php/ajchem/article/view/13254.