@article{TRSPY_1987_176_a8,
     author = {N. K. Nikol'skii and S. V. Khrushchev},
     title = {A~functional model and some problems of the spectral theory of functions},
     journal = {Informatics and Automation},
     pages = {97--210},
     publisher = {mathdoc},
     volume = {176},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1987_176_a8/}
}