@article{TRSPY_1983_164_a9,
     author = {A. A. Talalyan},
     title = {The local character of certain properties of complete orthonormal systems},
     journal = {Informatics and Automation},
     pages = {155--168},
     publisher = {mathdoc},
     volume = {164},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1983_164_a9/}
}