@article{10_1007_s10492_014_0045_7,
     author = {\v{S}ebestov\'a, Ivana},
     title = {A posteriori upper and lower error bound of the high-order discontinuous {Galerkin} method for the heat conduction equation},
     journal = {Applications of Mathematics},
     pages = {121--144},
     publisher = {mathdoc},
     volume = {59},
     number = {2},
     year = {2014},
     doi = {10.1007/s10492-014-0045-7},
     mrnumber = {3183468},
     zbl = {06362217},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-014-0045-7/}
}