%0 Journal Article %A Harasim, Petr %A Valdman, Jan %T Verification of functional a posteriori error estimates for obstacle problem in 2D %J Kybernetika %D 2014 %P 978-1002 %V 50 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14736/kyb-2014-6-0978/ %R 10.14736/kyb-2014-6-0978 %G en %F 10_14736_kyb_2014_6_0978