“Some Fejer and Hermite-Hadamard Type Inequalities Considering ²-Convex and (σ, ²)-Convex Functions” (2018) Punjab University Journal of Mathematics, 50(3), pp. 13–24. Available at: https://pujm.pu.edu.pk/index.php/pujm/article/view/137 (Accessed: 29 June 2025).