Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1986_40_3_a6, author = {V. G. Dolgolaptev}, title = {Strong summability of {Riesz} means}, journal = {Matemati\v{c}eskie zametki}, pages = {352--363}, publisher = {mathdoc}, volume = {40}, number = {3}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1986_40_3_a6/} }
V. G. Dolgolaptev. Strong summability of Riesz means. Matematičeskie zametki, Tome 40 (1986) no. 3, pp. 352-363. http://geodesic.mathdoc.fr/item/MZM_1986_40_3_a6/