Generalized Hyers-Ulam Stability of a System of Bi-Reciprocal Functional Equations. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 8, n. 2, p. 283–293, 2015. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/2337. Acesso em: 22 dec. 2024.