HnatyukYu. V. “Best Uniform Approximation of a Family of Functions Continuous on a Compact Set”. Ukrains’kyi Matematychnyi Zhurnal 54, no. 11 (November 25, 2002): 1574-1580. Accessed November 22, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/4194.