Voir la notice de l'article provenant de la source Math-Net.Ru
@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/} }
S. V. Uspenskii. On boundary properties of a certain class of differentiable functions in smooth regions. Doklady Akademii Nauk, Tome 164 (1965) no. 4, pp. 750-752. http://geodesic.mathdoc.fr/item/DAN_1965_164_4_a7/