SWEETLIN RAJULA RUBAVATHI, D., and S. BALAKUMAR. “Iron(III)-Salen-Catalyzed H2O2 Oxidation of Dibenzyl Sulphide”. Asian Journal of Chemistry, vol. 22, no. 6, May 2010, pp. 4891-7, https://asianpubs.org/index.php/ajchem/article/view/16831.