Tanana, V. P.; Danilin, A. R. Necessary and sufficient conditions for convergence of finite-dimensional approximations of regularized solutions. (English. Russian original) Zbl 0535.41039 Sov. Math., Dokl. 25, 841—842 (1982); translation from Dokl. Akad. Nauk SSSR 264, 1094—1096 (1982). Reviewer: W.Krabs MSC: 41A65 47A55 47A50 65J10 65M30