%0 Journal Article
%A H.J.C. Barbosa
%A Thomas J.R. Hughes
%T Boundary Lagrange multipliers in finite element methods: error analysis in natural forms.
%J Numerische Mathematik
%D 1992
%P 1-16
%V 62
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1992__62_1_133639/
%F NUMA_1992__62_1_133639