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@article{TM_1967_88_a1, author = {S. B. Stechkin}, title = {A~remark on {Jackson's} theorem}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {17--19}, publisher = {mathdoc}, volume = {88}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TM_1967_88_a1/} }
S. B. Stechkin. A~remark on Jackson's theorem. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Approximation of functions in the mean, Tome 88 (1967), pp. 17-19. http://geodesic.mathdoc.fr/item/TM_1967_88_a1/