%0 Journal Article %A O. L. Vinogradov %T Sharp estimates of best approximations in terms of holomorphic functions of Weierstrass-type operators %J Zapiski Nauchnykh Seminarov POMI %D 2012 %P 18-60 %V 404 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2012_404_a1/ %G ru %F ZNSL_2012_404_a1