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@article{TM_1971_112_a14, author = {V. Ivanov}, title = {The solution of operator equations that are not well-posed}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {232--240}, publisher = {mathdoc}, volume = {112}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TM_1971_112_a14/} }
V. Ivanov. The solution of operator equations that are not well-posed. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Collection of articles. Part I, Tome 112 (1971), pp. 232-240. http://geodesic.mathdoc.fr/item/TM_1971_112_a14/