KlishchukB. A. and SalimovR. R. (2019) “Lower bounds for the volume of the image of a ball”, Ukrains’kyi Matematychnyi Zhurnal, 71(6), pp. 774-785. Available at: http://umj.imath.kiev.ua/index.php/umj/article/view/1475 (Accessed: 5December2020).