@article{DAN_1957_113_3_a2,
     author = {M. A. Evgrafov and A. D. Solov'ev},
     title = {On a certain general test of basis},
     journal = {Doklady Akademii Nauk},
     pages = {493--496},
     publisher = {mathdoc},
     volume = {113},
     number = {3},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_113_3_a2/}
}