Çınar, Selin, and Kamil Demirci. “Korovkin Type Approximation For Double Sequences Via $\mu$-Statistical\\ $\mathcal{A}$-Summation Process in Modular Spaces”. Sarajevo Journal of Mathematics 17, no. 2 (March 3, 2022): 199–216. Accessed November 21, 2024. https://sjm.anubih.ba/index.php/sjm/article/view/8.