%0 Journal Article %A A. L. Kazakov %A P. D. Lebedev %A A. A. Lempert %T On covering bounded sets by collections of circles of various radii %J The Bulletin of Irkutsk State University. Series Mathematics %D 2020 %P 18-33 %V 31 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIGUM_2020_31_a1/ %G en %F IIGUM_2020_31_a1