@article{DEMR_2019_12_a2,
     author = {M. G. Magomed-Kasumov},
     title = {The approximation of piecewise smooth functions by trigonometric {Fourier} sums},
     journal = {Daghestan Electronic Mathematical Reports},
     pages = {25--42},
     publisher = {mathdoc},
     volume = {12},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DEMR_2019_12_a2/}
}