ZhuravlyovV. Р. “Weakly Nonlinear Fredholm Integral Equations With Degenerate Kernel in Banach Spaces”. Ukrains’kyi Matematychnyi Zhurnal 67, no. 11 (November 25, 2015): 1477-1490. Accessed May 8, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2083.