%0 Journal Article
%A Konrad Gröger
%T A W1,p-Estimate for Solutions to Mixed Boundary Value Problems for Second Order Elliptic Differential Equtions.
%J Mathematische Annalen
%D 1989
%P 679-688
%V 283
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1989__283_1_164533/
%F MAN_1989__283_1_164533