TY - JOUR AU - Johnson, Claes AU - Thomee, Vidar TI - Error estimates for some mixed finite element methods for parabolic type problems JO - ESAIM: Mathematical Modelling and Numerical Analysis PY - 1981 SP - 41 EP - 78 VL - 15 IS - 1 PB - Centrale des revues, Dunod-Gauthier-Villars PP - Montreuil UR - https://geodesic-test.mathdoc.fr/item/M2AN_1981__15_1_41_0/ LA - en ID - M2AN_1981__15_1_41_0 ER -