%0 Journal Article %A Harold Donnelly %A Charles Fefferman %T Nodal sets of eigenfunctions on Riemannian manifolds. %J Inventiones mathematicae %D 1988 %P 161-184 %V 93 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1988__93_2_143593/ %F IM_1988__93_2_143593