Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IM2_1968_2_1_a1, author = {R. M. Trigub}, title = {Linear summation methods and the absolute convergence of {Fourier} series}, journal = {Izvestiya. Mathematics }, pages = {21--46}, publisher = {mathdoc}, volume = {2}, number = {1}, year = {1968}, language = {en}, url = {http://geodesic.mathdoc.fr/item/IM2_1968_2_1_a1/} }
R. M. Trigub. Linear summation methods and the absolute convergence of Fourier series. Izvestiya. Mathematics , Tome 2 (1968) no. 1, pp. 21-46. http://geodesic.mathdoc.fr/item/IM2_1968_2_1_a1/