@article{DAN_1996_347_2_a2,
     author = {S. M. Nikol'skii},
     title = {Some manifolds and the approximation on them by polynomials in the},
     journal = {Doklady Akademii Nauk},
     pages = {157--159},
     publisher = {mathdoc},
     volume = {347},
     number = {2},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1996_347_2_a2/}
}