%0 Journal Article %A Ya. Sh. Salimov %T Estimation of spectral density corresponding to an expansion in an $N$-multiple system of exponentials %J Differencialʹnye uravneniâ %D 1986 %P 114-125 %V 22 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1986_22_1_a13/ %G ru %F DE_1986_22_1_a13