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@article{DAN_1963_149_1_a9, author = {S. L. Sobolev}, title = {The density of compactly supported functions in the space $L_p^{(m)}(E_n)$}, journal = {Doklady Akademii Nauk}, pages = {40--43}, publisher = {mathdoc}, volume = {149}, number = {1}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_149_1_a9/} }
S. L. Sobolev. The density of compactly supported functions in the space $L_p^{(m)}(E_n)$. Doklady Akademii Nauk, Tome 149 (1963) no. 1, pp. 40-43. http://geodesic.mathdoc.fr/item/DAN_1963_149_1_a9/