%0 Journal Article
%A C. CLARK
%T Inequalities of Poincaré Type and Applications to Singular Elliptic Differential Operators.
%J Mathematische Annalen
%D 1968
%P 305-316
%V 176
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1968__176_161697/
%F MAN_1968__176_161697