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: http://umj.imath.kiev.ua/index.php/umj/article/view/254 (Accessed: 26September2022).