%0 Journal Article
%A A. G. Baskakov
%T Spectral properties of the differential operator $\frac d{dt}-A_0$ with an unbounded operator $A_0$
%J Differencialʹnye uravneniâ
%D 1991
%P 2162-2164
%V 27
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1991_27_12_a18/
%G ru
%F DE_1991_27_12_a18