@article{SM_2008_199_9_a2,
     author = {B. V. Simonov and S. Yu. Tikhonov},
     title = {Embedding theorems in constructive approximation},
     journal = {Sbornik. Mathematics},
     pages = {1367--1407},
     publisher = {mathdoc},
     volume = {199},
     number = {9},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2008_199_9_a2/}
}