@article{DAN_1960_131_5_a10,
     author = {S. A. Smolyak},
     title = {Interpolation and quadrature formulas for the classes $W_s^\alpha$ and $E_s^\alpha$},
     journal = {Doklady Akademii Nauk},
     pages = {1028--1031},
     publisher = {mathdoc},
     volume = {131},
     number = {5},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_131_5_a10/}
}