@article{DAN_1991_320_5_a4,
     author = {S. A. Smolyak},
     title = {On the determination of the mean},
     journal = {Doklady Akademii Nauk},
     pages = {1054--1057},
     publisher = {mathdoc},
     volume = {320},
     number = {5},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_320_5_a4/}
}