Kofanov, V. A. (2019) “Bojanov – Naidenov problem for the differentiable functions on the real line and the inequalities of various metrics”, Ukrains’kyi Matematychnyi Zhurnal, 71(6), pp. 786-800. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/1476 (Accessed: 28March2024).