Mechanism of quinquevalent vanadium oxidation of L-typtophan in sulphuric acid medium. International Journal of Pharmacy and Life Sciences, [S. l.], v. 2, n. 11, p. 1223–1225, 2011. Disponível em: http://ijplsjournal.com/index.php/ijpls/article/view/897. Acesso em: 17 dec. 2025.