@article{SM_1988_59_1_a6,
     author = {V. A. Kondrat'ev and J. Kop\'a\v{c}ek and O. A. Oleinik},
     title = {On the best {H\"older} exponents for generalized solutions of the {Dirichlet} problem for a~second order elliptic equation},
     journal = {Sbornik. Mathematics},
     pages = {113--127},
     year = {1988},
     volume = {59},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1988_59_1_a6/}
}