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@article{DAN_1971_196_4_a2, author = {V. V. Zhuk}, title = {Some exact inequalities between best approximations and moduli of continuity}, journal = {Doklady Akademii Nauk}, pages = {748--750}, publisher = {mathdoc}, volume = {196}, number = {4}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1971_196_4_a2/} }
V. V. Zhuk. Some exact inequalities between best approximations and moduli of continuity. Doklady Akademii Nauk, Tome 196 (1971) no. 4, pp. 748-750. http://geodesic.mathdoc.fr/item/DAN_1971_196_4_a2/