%0 Journal Article
%A N. Kikuchi
%T Convergence of a Penalty-Finite Element Approximation for an Obstacle Problem.
%J Numerische Mathematik
%D 1981
%P 105-120
%V 37
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1981__37_132720/
%F NUMA_1981__37_132720