LY VAN AN. Generalized Hyers-Ulam Type Stability of the $2k$-Variables Quadratic $\beta$-Functional Inequalities And Function in $\gamma$-Homogeneous Normed Space. International Journal of Mathematics And its Applications, [S. l.], v. 9, n. 3, p. 81–93, 2021. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/47. Acesso em: 5 may. 2024.