@article{IVM_1999_4_a3,
     author = {R. V. Vershinin},
     title = {On $(1+\varepsilon_n)$-bounded $M$-bases},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {24--27},
     publisher = {mathdoc},
     number = {4},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1999_4_a3/}
}