SolodkiiS. G. “Complexity of Projective Methods for the Solution of Ill-Posed Problems”. Ukrains’kyi Matematychnyi Zhurnal 48, no. 8 (August 25, 1996): 1114-1124. Accessed November 28, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/5255.