@article{MZM_2011_89_5_a4,
     author = {R. S. Ismagilov and K. V. Uskov},
     title = {Asymptotics of the $n${-Widths} of a {Wiener} {Spiral} in {Complex} {Hilbert} {Space}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {686--693},
     publisher = {mathdoc},
     volume = {89},
     number = {5},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2011_89_5_a4/}
}