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@article{MZM_1992_52_3_a5, author = {V. I. Ivanov}, title = {Lower bound on constant in {Jackson} inequality in different $L_p$-norms}, journal = {Matemati\v{c}eskie zametki}, pages = {48--62}, publisher = {mathdoc}, volume = {52}, number = {3}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1992_52_3_a5/} }
V. I. Ivanov. Lower bound on constant in Jackson inequality in different $L_p$-norms. Matematičeskie zametki, Tome 52 (1992) no. 3, pp. 48-62. http://geodesic.mathdoc.fr/item/MZM_1992_52_3_a5/