BAKHTIN, A. K.; DENEGA, I. V. Inequalities for the inner radii of nonorevlapping domains. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 71, n. 7, p. 996–1002, 2019. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1492. Acesso em: 27 apr. 2025.