BezkrylaS. I., NesterenkoA. N., and Chaikovs’kyiA. V. “On One Inequality for the Moduli of continuity of Fractional Order Generated by Semigroups of Operators”. Ukrains’kyi Matematychnyi Zhurnal 71, no. 3 (March 25, 2019): 310-324. Accessed November 25, 2020. http://umj.imath.kiev.ua/index.php/umj/article/view/1441.