BabenkoV. F., KorneichukN. P., KofanovV. A., and PichugovS. A. “Inequalities for Upper Bounds of Functionals on the Classes $W^r H^{ω}$ and Their Applications”. Ukrains’kyi Matematychnyi Zhurnal 52, no. 1 (January 25, 2000): 66-84. Accessed October 6, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/4398.