%0 Journal Article %A James Lee Hafner %T New Omega Theorems for Two Classical Lattice Points Problems. %J Inventiones mathematicae %D 1981 %P 181-186 %V 63 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1981__63_142795/ %F IM_1981__63_142795