%0 Journal Article %A A. S. Zhuk %T Approximating periodic functions in H\"older type metrics by singular integrals with positive kernels %J Zapiski Nauchnykh Seminarov POMI %D 2007 %P 52-69 %V 350 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2007_350_a4/ %G ru %F ZNSL_2007_350_a4