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@article{MMO_1961_10_a8, author = {D. E. Men'shov}, title = {Summability of orthogonal series by linear methods}, journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva}, pages = {351--418}, publisher = {mathdoc}, volume = {10}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MMO_1961_10_a8/} }
D. E. Men'shov. Summability of orthogonal series by linear methods. Trudy Moskovskogo matematičeskogo obŝestva, Trudy Moskovskogo Matematicheskogo Obshchestva, Tome 10 (1961), pp. 351-418. http://geodesic.mathdoc.fr/item/MMO_1961_10_a8/