AskarovM. “On the Rate of Convergence of Methods of Projection-Iterative Type for Fredholm Equations With Periodic Analytic Kernels”. Ukrains’kyi Matematychnyi Zhurnal 47, no. 9 (September 25, 1995): 1155–1161. Accessed November 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/5514.