%0 Journal Article
%A F. Brezzi
%A J., Jr. Douglas
%A R. Durán
%T Mixed Finite Elements for Second Order Elliptic Problems in Three Variables.
%J Numerische Mathematik
%D 1987
%P 237-250
%V 51
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1987__51_133194/
%F NUMA_1987__51_133194