MURTHY, S.; ARUNKUMAR, M.; GOVINDAN, V. General solution and generalized Ulam-Hyers stability of a generalized n- type additive quadratic functional equation in Banach space and Banach algebra: direct and fixed point methods. International Journal of Advanced Mathematical Sciences, [S. l.], v. 3, n. 1, p. 25–64, 2015. DOI: 10.14419/ijams.v3i1.4402. Disponível em: https://sciencepubco.com/index.php/IJAMS/article/view/4402.. Acesso em: 12 apr. 2025.