%0 Journal Article %A S.T. Yau %A L.Z. Gao %T The existence of negatively Ricci curved metrics on three manifolds. %J Inventiones mathematicae %D 1986 %P 637-652 %V 85 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1986__85_143383/ %F IM_1986__85_143383