BezkrylaS. I., NesterenkoA. N., and Chaikovs’kyiA. V. 2019. “On One Inequality for the Moduli of continuity of Fractional Order Generated by Semigroups of Operators”. Ukrains’kyi Matematychnyi Zhurnal 71 (3), 310-24. http://umj.imath.kiev.ua/index.php/umj/article/view/1441.