Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1993_54_2_a14, author = {R. K. Vasil'ev}, title = {Summation methods for {Fourier} series yielding best order of approximation}, journal = {Matemati\v{c}eskie zametki}, pages = {145--151}, publisher = {mathdoc}, volume = {54}, number = {2}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1993_54_2_a14/} }
R. K. Vasil'ev. Summation methods for Fourier series yielding best order of approximation. Matematičeskie zametki, Tome 54 (1993) no. 2, pp. 145-151. http://geodesic.mathdoc.fr/item/MZM_1993_54_2_a14/