@article{DAN_1994_337_2_a4, author = {S. M. Nikol'skii}, title = {Approximation by polynomials of functions in the class $H^r_p(\Gamma)$}, journal = {Doklady Akademii Nauk}, pages = {165--167}, publisher = {mathdoc}, volume = {337}, number = {2}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1994_337_2_a4/} }