Savaş, E. “On the Lacunary $(A, ϕ)$ -Statistical Convergence of Double Sequences ”. Ukrains’kyi Matematychnyi Zhurnal 70, no. 6 (June 25, 2018): 848-858. Accessed February 1, 2023. https://umj.imath.kiev.ua/index.php/umj/article/view/1599.