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@article{DAN_1986_289_3_a6, author = {S. M. Nikol'skii and P. I. Lizorkin}, title = {Inequalities for harmonic, spherical and algebraic polynomials}, journal = {Doklady Akademii Nauk}, pages = {541--545}, publisher = {mathdoc}, volume = {289}, number = {3}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1986_289_3_a6/} }
S. M. Nikol'skii; P. I. Lizorkin. Inequalities for harmonic, spherical and algebraic polynomials. Doklady Akademii Nauk, Tome 289 (1986) no. 3, pp. 541-545. http://geodesic.mathdoc.fr/item/DAN_1986_289_3_a6/