%0 Journal Article %A N. K. Nikol'skii %A S. V. Khrushchev %T A~functional model and some problems of the spectral theory of functions %J Informatics and Automation %D 1987 %P 97-210 %V 176 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1987_176_a8/ %G ru %F TRSPY_1987_176_a8