ZabolotskiiN. V. “Asymptotic Behavior of Logarithmic Potential of Zero Kind”. Ukrains’kyi Matematychnyi Zhurnal 53, no. 11 (November 25, 2001): 1568-1574. Accessed November 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/4377.