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@article{DAN_1991_319_6_a6, author = {S. M. Nikol'skii}, title = {Approximation of functions by trigonometric polynomials on a {manifold.~I}}, journal = {Doklady Akademii Nauk}, pages = {1313--1317}, publisher = {mathdoc}, volume = {319}, number = {6}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1991_319_6_a6/} }
S. M. Nikol'skii. Approximation of functions by trigonometric polynomials on a manifold.~I. Doklady Akademii Nauk, Tome 319 (1991) no. 6, pp. 1313-1317. http://geodesic.mathdoc.fr/item/DAN_1991_319_6_a6/