@article{SM_1975_26_2_a3,
     author = {\`E. A. Storozhenko},
     title = {Embedding theorems and best approximations},
     journal = {Sbornik. Mathematics},
     pages = {213--224},
     publisher = {mathdoc},
     volume = {26},
     number = {2},
     year = {1975},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1975_26_2_a3/}
}