@article{TRSPY_1967_88_a0,
     author = {V. I. Berdyshev},
     title = {Jackson's theorem in $L_p$},
     journal = {Informatics and Automation},
     pages = {3--16},
     publisher = {mathdoc},
     volume = {88},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1967_88_a0/}
}