%0 Journal Article %A Chen, Zhangxin %T Analysis of mixed methods using conforming and nonconforming finite element methods %J ESAIM: Mathematical Modelling and Numerical Analysis %D 1993 %P 9-34 %V 27 %N 1 %I AFCET - Gauthier-Villars %C Paris %U http://geodesic.mathdoc.fr/item/M2AN_1993__27_1_9_0/ %G en %F M2AN_1993__27_1_9_0