SolodkiiS. G. “Information Complexity of Projection Algorithms for the Solution of Fredholm Equations of the First Kind. II”. Ukrains’kyi Matematychnyi Zhurnal 50, no. 6 (June 25, 1998): 838–844. Accessed July 27, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/4895.