@article{ZVMMF_1999_39_3_a14,
     author = {Yu. G. Petrov},
     title = {The inverse basis as applied to the mean-square approximation of a function},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {543},
     publisher = {mathdoc},
     volume = {39},
     number = {3},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1999_39_3_a14/}
}