%0 Journal Article
%A G. M. Gubreev
%T Spectral analysis of the differentiation operator and the
%J Doklady Akademii Nauk
%D 1984
%P 1052-1056
%V 278
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1984_278_5_a5/
%G ru
%F DAN_1984_278_5_a5