Bakhtin, A. K., Vyhovs’ka, L., & Denega, I. V. (2018). Inequalities for inner radii of symmetric disjoint domains. Ukrains’kyi Matematychnyi Zhurnal, 70(9), 1282-1288. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/1634