@article{DAN_1978_241_3_a5,
     author = {V. T. Gavrilyuk and S. B. Stechkin},
     title = {Approximation of continuous periodic functions by {Fourier} sums},
     journal = {Doklady Akademii Nauk},
     pages = {525--527},
     publisher = {mathdoc},
     volume = {241},
     number = {3},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_241_3_a5/}
}