Team, Support. “Fixed Points and Quadratic $\rho$-Functional Inequalities in Banach Spaces: Gang Lu, Gwang Hui Kim, Choonkil Park”. Thai Journal of Mathematics 18, no. 4 (December 1, 2020): 1733–1742. Accessed November 21, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1099.