@article{DAN_1961_138_3_a12,
     author = {A. M. Olevskii},
     title = {Divergent series for complete systems in $L^2$},
     journal = {Doklady Akademii Nauk},
     pages = {545--548},
     publisher = {mathdoc},
     volume = {138},
     number = {3},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_138_3_a12/}
}