%0 Journal Article %A N. Alon %T Economical Coverings of Sets of Lattice Points. %J Geometric and functional analysis %D 1991 %P 225-230 %V 1 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/GFA_1991__1_2_58120/ %F GFA_1991__1_2_58120