@article{VSPUI_2012_2_a2,
     author = {N. A. Lebedinskaya and D. M. Lebedinskii},
     title = {Optimal coefficients under signal expansion by $B$-splines},
     journal = {Vestnik Sankt-Peterburgskogo universiteta. Prikladna\^a matematika, informatika, processy upravleni\^a},
     pages = {25--35},
     year = {2012},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSPUI_2012_2_a2/}
}