@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/}
}