KARTHIKEYAN, G., et al. “Kinetics and Mechanism of Oxidation of Thiodiglycollic Acid by Quinolinium Fluorochromate and Quinolinium Chlorochromate. ”. Asian Journal of Chemistry, vol. 7, no. 4, June 2010, pp. 705-8, https://asianpubs.org/index.php/ajchem/article/view/24404.