ALZER, H. ON AN INTEGRAL INEQUALITY OF R. BELLMAN. Tamkang Journal of Mathematics, [S. l.], v. 22, n. 2, p. 187–191, 1991. DOI: 10.5556/j.tkjm.22.1991.4597. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4597. Acesso em: 3 may. 2024.