ROMÁN, Heriberto; FLORES, Arturo. On the level-convergence and fuzzy integration. CUBO, A Mathematical Journal, [S. l.], n. 10, p. 23–30, 1994. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/1822. Acesso em: 12 oct. 2025.