@article{SM_1984_47_1_a2,
     author = {I. M. Petrushko},
     title = {On~boundary values of solutions of elliptic equations in domains with {Lyapunov} boundary},
     journal = {Sbornik. Mathematics},
     pages = {43--72},
     publisher = {mathdoc},
     volume = {47},
     number = {1},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1984_47_1_a2/}
}