%0 Journal Article %A M. A. Skopina %T Lebesgue constants of multiple polyhedron sums of de la Vallee–Poussin %J Zapiski Nauchnykh Seminarov POMI %D 1983 %P 154-165 %V 125 %U http://geodesic.mathdoc.fr/item/ZNSL_1983_125_a14/ %G ru %F ZNSL_1983_125_a14