%0 Journal Article %A Mark Spivakovsky %T A counterexample to the theorem of Beppo Levi in three dimensions. %J Inventiones mathematicae %D 1989 %P 181-184 %V 96 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1989__96_1_143676/ %F IM_1989__96_1_143676