Tayebee, Reza. “Environmentally Benign Oxidation of Aniline With 30 % H2O2 Catalyzed by Some Heteropolyoxometalates”. Asian Journal of Chemistry, vol. 21, no. 7, Mar. 2010, pp. 5791-3, https://asianpubs.org/index.php/ajchem/article/view/18413.