Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1968_183_2_a1, author = {V. Ya. Arsenin}, title = {The optimal summation of {Fourier} series with approximate coefficients}, journal = {Doklady Akademii Nauk}, pages = {257--260}, publisher = {mathdoc}, volume = {183}, number = {2}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1968_183_2_a1/} }
V. Ya. Arsenin. The optimal summation of Fourier series with approximate coefficients. Doklady Akademii Nauk, Tome 183 (1968) no. 2, pp. 257-260. http://geodesic.mathdoc.fr/item/DAN_1968_183_2_a1/