@article{DAN_1964_154_3_a11,
     author = {V. R. Portnov},
     title = {A theorem on the density of finite functions in the space $L_{p,a}^{(m)}(E_n)$},
     journal = {Doklady Akademii Nauk},
     pages = {530--533},
     publisher = {mathdoc},
     volume = {154},
     number = {3},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_154_3_a11/}
}