Voir la notice de l'article provenant de la source Math-Net.Ru
@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/} }
O. V. Davydov. Approximation of individual functions by rectangular Fourier sums. Doklady Akademii Nauk, Tome 327 (1992) no. 3, pp. 295-298. http://geodesic.mathdoc.fr/item/DAN_1992_327_3_a0/