Sandra Pinelas, M. Arunkumar, T. Namachivayam, E. Sathya. General solution and two methods of generalized Ulam - Hyers stability of n-dimensional AQCQ functional equation. Malaya J. Mat. [Internet]. 2017 Apr. 1 [cited 2024 Nov. 24];5(02):202-40. Available from: https://www.malayajournal.org/index.php/mjm/article/view/590