“Generalized Ulam-Hyers Stability of a General Mixed AQCQ-functional Equation in Multi-Banach Spaces: a Fixed Point Approach” (2010)
European Journal of Pure and Applied Mathematics, 3(6), pp. 1032–1047. Available at:
https://www.ejpam.com/index.php/ejpam/article/view/854 (Accessed: 23 November 2024).