@article{DAN_1992_327_3_a0,
     author = {O. V. Davydov},
     title = {Approximation of individual functions by rectangular {Fourier} sums},
     journal = {Doklady Akademii Nauk},
     pages = {295--298},
     publisher = {mathdoc},
     volume = {327},
     number = {3},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1992_327_3_a0/}
}