@article{TIMM_2008_14_3_a9,
     author = {V. I. Ivanov and D. V. Chertova and Liu Yongping},
     title = {The sharp {Jackson} inequality in the space $L_2$ on the segment $[-1,1]$ with the power weight},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {112--126},
     publisher = {mathdoc},
     volume = {14},
     number = {3},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2008_14_3_a9/}
}