Klishchuk, Bogdan, and Ruslan Salimov. “Lower Bounds for the Volume of the Image of a Ball”. Ukrains’kyi Matematychnyi Zhurnal 71, no. 6 (July 19, 2023): 774-785. Accessed July 27, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/775.