“About One Property of the Function $\|x-Y\|^{2-M}$”. Visnyk of V. N. Karazin Kharkiv National University. Ser. Mathematics, Applied Mathematics and Mechanics, no. 1081 (October 8, 2013): 4–9. Accessed October 24, 2026. https://periodicals.karazin.ua/mech_math/article/view/13124.