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@article{DAN_1962_144_5_a8, author = {S. S. Litvinkov}, title = {Differentiability of {Fourier} series with respect to generalized spherical functions}, journal = {Doklady Akademii Nauk}, pages = {977--980}, publisher = {mathdoc}, volume = {144}, number = {5}, year = {1962}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1962_144_5_a8/} }
S. S. Litvinkov. Differentiability of Fourier series with respect to generalized spherical functions. Doklady Akademii Nauk, Tome 144 (1962) no. 5, pp. 977-980. http://geodesic.mathdoc.fr/item/DAN_1962_144_5_a8/