%0 Journal Article %A Pitkaranta, Juhani %T A conforming finite element method with Lagrange multipliers for the biharmonic problem %J ESAIM: Mathematical Modelling and Numerical Analysis %D 1980 %P 309-324 %V 14 %N 3 %I Centrale des revues, Dunod-Gauthier-Villars %C Montreuil %U http://geodesic.mathdoc.fr/item/M2AN_1980__14_3_309_0/ %G en %F M2AN_1980__14_3_309_0