%0 Journal Article %A V. V. Zhuk %T Inequalities of type generalized Jackson theorem for best approximations %J Zapiski Nauchnykh Seminarov POMI %D 2012 %P 135-156 %V 404 %U http://geodesic.mathdoc.fr/item/ZNSL_2012_404_a7/ %G ru %F ZNSL_2012_404_a7