%0 Journal Article
%A Hild, P.
%T A sign preserving mixed finite element approximation for contact problems
%J International Journal of Applied Mathematics and Computer Science
%D 2011
%P 487-498
%V 21
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IJAMCS_2011_21_3_a6/
%G en
%F IJAMCS_2011_21_3_a6