@article{VTGU_2010_3_a6,
     author = {T. E. Khmyleva and O. G. Ivanova},
     title = {On some systems of {a~Hilbert} space which are not bases},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {53--60},
     year = {2010},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2010_3_a6/}
}