ARUNKUMAR, M. Generalized Ulam - Hyers Stability of Derivations of a AQ - Functional Equation. CUBO, A Mathematical Journal, [S. l.], v. 15, n. 1, p. 159–169, 2013. DOI: 10.4067/S0719-06462013000100011. Disponível em: https://www.perspectivasdelacomunicacion.cl/ojs/index.php/cubo/article/view/1326. Acesso em: 20 may. 2024.