K. Boukerrioua, D. Diabi, and B. Kilani. “Refinements of Some 2D Nonlinear Integral Inequalities and Applications in Fractional Integral Equations”. Malaya Journal of Matematik 8, no. 01 (January 1, 2020): 74–81. Accessed July 16, 2024. https://www.malayajournal.org/index.php/mjm/article/view/1336.