R. MURALI; A. ANTONY RAJ. Stability of Bi-Cubic Functional Equation in Multi-Banach Spaces. International Journal of Mathematics And its Applications, [S. l.], v. 6, n. 1 (Special Issue), p. 21–24, 2018. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/1389. Acesso em: 22 jul. 2024.