Shinde, C.P., et al. “Kinetics and Mechanism of Hydrolysis of Di-P-Sulphonic Acid Aniline Phosphate in Acidic Medium ”. Asian Journal of Chemistry, vol. 10, no. 2, Mar. 2010, pp. 245-9, https://asianpubs.org/index.php/ajchem/article/view/23593.