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@article{IVM_2014_11_a1, author = {B. V. Vinnitskii and V. N. Dilnyi}, title = {On approximation properties of one trigonometric system}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {13--25}, publisher = {mathdoc}, number = {11}, year = {2014}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_2014_11_a1/} }
B. V. Vinnitskii; V. N. Dilnyi. On approximation properties of one trigonometric system. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 11 (2014), pp. 13-25. http://geodesic.mathdoc.fr/item/IVM_2014_11_a1/