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@article{IM_1988__93_2_143593, author = {Harold Donnelly and Charles Fefferman}, title = {Nodal sets of eigenfunctions on {Riemannian} manifolds.}, journal = {Inventiones mathematicae}, pages = {161--184}, publisher = {mathdoc}, volume = {93}, number = {2}, year = {1988}, zbl = {0659.58047}, url = {http://geodesic.mathdoc.fr/item/IM_1988__93_2_143593/} }
Harold Donnelly; Charles Fefferman. Nodal sets of eigenfunctions on Riemannian manifolds.. Inventiones mathematicae, Tome 93 (1988) no. 2, pp. 161-184. http://geodesic.mathdoc.fr/item/IM_1988__93_2_143593/