@article{VTGU_2007_1_a8,
     author = {T. E. Khmyleva and I. P. Bukhtina},
     title = {On some sequence of {Hilbert} space elements, which is not basis},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {58--62},
     year = {2007},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2007_1_a8/}
}