TY - JOUR AU - Mark Ainsworth AU - J. Tinsley Oden TI - A unified approach to a posteriori error estimation using element residual methods. JO - Numerische Mathematik PY - 1993 SP - 23 EP - 50 VL - 65 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1993__65_4_133721/ ID - NUMA_1993__65_4_133721 ER -