%0 Journal Article %A Jorgen Hoffmann-Jorgensen %T Coverings of Metric Spaces with Randomly Placed Balls. %J Mathematica Scandinavica %D 1973 %P 169-186 %V 32 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1973__32_166294/ %F MS2_1973__32_166294