@article{IVM_1995_9_a8,
     author = {Shraǐfel' and I. S.},
     title = {On absolutely representing systems in {Hilbert} spaces},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {78--82},
     year = {1995},
     number = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1995_9_a8/}
}