Bai, Shu-Ping, and Feng Qi. “Some Inequalities for (s1;m1)-(s2;M2)-Convex Functions on the Co-Ordinates”. Global Journal of Mathematical Analysis 1, no. 1 (April 12, 2013): 22–28. Accessed December 22, 2024. https://sciencepubco.com/index.php/GJMA/article/view/776.