KLISHCHUK, B. A.; SALIMOV, R. R. Lower bounds for the volume of the image of a ball. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 71, n. 6, p. 774–785, 2019. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1475. Acesso em: 5 dec. 2025.