%0 Journal Article %A Bramble, James H. %A Falk, Richard S. %T A mixed-Lagrange multiplier finite element method for the polyharmonic equation %J ESAIM: Mathematical Modelling and Numerical Analysis %D 1985 %P 519-557 %V 19 %N 4 %I AFCET - Gauthier-Villars %C Paris %U http://geodesic.mathdoc.fr/item/M2AN_1985__19_4_519_0/ %G en %F M2AN_1985__19_4_519_0