TY - JOUR AU - Brezzi, F. AU - Falk, Richard S. AU - Donatella Marini, L. TI - Basic principles of mixed Virtual Element Methods JO - ESAIM: Mathematical Modelling and Numerical Analysis PY - 2014 SP - 1227 EP - 1240 VL - 48 IS - 4 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/m2an/2013138/ DO - 10.1051/m2an/2013138 LA - en ID - M2AN_2014__48_4_1227_0 ER -