@article{DAN_1965_164_4_a7,
     author = {S. V. Uspenskii},
     title = {On boundary properties of a certain class of differentiable functions in smooth regions},
     journal = {Doklady Akademii Nauk},
     pages = {750--752},
     publisher = {mathdoc},
     volume = {164},
     number = {4},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_164_4_a7/}
}