@article{10_14736_kyb_2014_6_0978,
     author = {Harasim, Petr and Valdman, Jan},
     title = {Verification of functional a posteriori error estimates for obstacle problem in {2D}},
     journal = {Kybernetika},
     pages = {978--1002},
     publisher = {mathdoc},
     volume = {50},
     number = {6},
     year = {2014},
     doi = {10.14736/kyb-2014-6-0978},
     mrnumber = {3301782},
     zbl = {06416870},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.14736/kyb-2014-6-0978/}
}