Кофанов, В.О. (2021) “The Bojanov-Naidenov problem for the functions with non-symmetric restrictions on the oldest derivative”, Ukrains’kyi Matematychnyi Zhurnal, 71(3), pp. 368–381. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/254 (Accessed: 14 April 2025).