%0 Journal Article %A Fernando Reitich %A Oscar P. Bruno %T Boundary-Variation Solution of Eigenvalue Problems for Elliptic Operators. %J The journal of Fourier analysis and applications [[Elektronische Ressource]] %D 2001 %P 169-188 %V 7 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/JFAA_2001__7_4_59677/ %F JFAA_2001__7_4_59677