ZABOLOTNII, Y.; DENEGA, I. An Extremal Problem on Non-overlapping Domains Containing Ellipse Points. Eurasian Mathematical Journal, [S. l.], v. 12, n. 4, p. 82–91, 2021. Disponível em: https://emj.enu.kz/index.php/main/article/view/242. Acesso em: 19 nov. 2024.