Bezkryla, S. I., A. N. Nesterenko, and A. V. Chaikovs’kyi. “On the Third Moduli of Continuity”. Ukrains’kyi Matematychnyi Zhurnal 66, no. 10 (October 25, 2014): 1420-1424. Accessed April 19, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2233.