@article{KYB_2013__49_5_a4,
     author = {Harasim, Petr and Valdman, Jan},
     title = {Verification of functional a posteriori error estimates for obstacle problem in {1D}},
     journal = {Kybernetika},
     pages = {738--754},
     publisher = {mathdoc},
     volume = {49},
     number = {5},
     year = {2013},
     mrnumber = {3182637},
     zbl = {1278.49035},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_2013__49_5_a4/}
}