“Weakly Nonlinear Boundary-Value Problems for Fredholm Integro-Differential Equations With a Degenerate Kernel in Banach Spaces”. Neliniini Kolyvannya 27, no. 2 (June 29, 2024): 212–228. Accessed April 11, 2026. https://nosc.imath.kiev.ua/index.php/nosc/article/view/1141.