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@article{DAN_1984_278_3_a7, author = {I. V. Petrova}, title = {Jackson's theorem and {Besov} spaces on a sphere}, journal = {Doklady Akademii Nauk}, pages = {544--549}, publisher = {mathdoc}, volume = {278}, number = {3}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1984_278_3_a7/} }
I. V. Petrova. Jackson's theorem and Besov spaces on a sphere. Doklady Akademii Nauk, Tome 278 (1984) no. 3, pp. 544-549. http://geodesic.mathdoc.fr/item/DAN_1984_278_3_a7/