TY - JOUR AU - Harasim, Petr AU - Valdman, Jan TI - Verification of functional a posteriori error estimates for obstacle problem in 1D JO - Kybernetika PY - 2013 SP - 738 EP - 754 VL - 49 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_2013__49_5_a4/ LA - en ID - KYB_2013__49_5_a4 ER -