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@article{TM_1983_164_a10, author = {K. Tandori}, title = {Orthogonal series and approximations of functions}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {169--179}, publisher = {mathdoc}, volume = {164}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TM_1983_164_a10/} }
K. Tandori. Orthogonal series and approximations of functions. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Orthogonal series and approximations of functions, Tome 164 (1983), pp. 169-179. http://geodesic.mathdoc.fr/item/TM_1983_164_a10/