%0 Journal Article %A Brezzi, F. %A Falk, Richard S. %A Donatella Marini, L. %T Basic principles of mixed Virtual Element Methods %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2014 %P 1227-1240 %V 48 %N 4 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an/2013138/ %R 10.1051/m2an/2013138 %G en %F M2AN_2014__48_4_1227_0