%0 Journal Article %A Klaus Böhmer %T Asymptotic Expansion for the Discretization Error in Linear Elliptic Boundary Value Problems on General Regions. %J Mathematische Zeitschrift %D 1981 %P 235-256 %V 177 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1981__177_173060/ %F MZ_1981__177_173060