%0 Journal Article %A P.G. CIARLET %T An 0 (h2) Method for a Non-Smooth Boundary Value Problem %J Aequationes mathematicae %D 1969 %P 39-49 %V 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1969__2_182301/ %G en %F AM2_1969__2_182301