@article{SM_1993_74_2_a5,
     author = {G. G. Magaril-Il'yaev},
     title = {Mean dimension, widths, and optimal recovery of {Sobolev} classes of functions on the line},
     journal = {Sbornik. Mathematics},
     pages = {381--403},
     publisher = {mathdoc},
     volume = {74},
     number = {2},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1993_74_2_a5/}
}