Podvysotskii, R. V. (2008) “Estimation of the product of inner radii of partially nonoverlapping domains”, Ukrains’kyi Matematychnyi Zhurnal, 60(7), pp. 1004–1008. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3218 (Accessed: 23June2024).