Kofanov, V.A. (2019) “The Bojanov – Naidenov problem for functions with nonsymmetric restrictions on the highest derivative”, Ukrains’kyi Matematychnyi Zhurnal, 71(3), pp. 368–381. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/1445 (Accessed: 26 April 2025).