Shahrokh Farhadabadi, Choonkil Park. Orthogonal stability of a quadratic functional inequality: a fixed point approach. Journal of Computational Analysis and Applications (JoCAAA) [Internet]. 2021 Jan. 19 [cited 2024 Dec. 19];29(1):140-5. Available from: https://eudoxuspress.com/index.php/pub/article/view/138