Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1991_49_6_a1, author = {R. R. Ashurov}, title = {Summation of multiple trigonometric {Fourier} series}, journal = {Matemati\v{c}eskie zametki}, pages = {12--18}, publisher = {mathdoc}, volume = {49}, number = {6}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1991_49_6_a1/} }
R. R. Ashurov. Summation of multiple trigonometric Fourier series. Matematičeskie zametki, Tome 49 (1991) no. 6, pp. 12-18. http://geodesic.mathdoc.fr/item/MZM_1991_49_6_a1/