%0 Journal Article
%A B. T. Bilalov
%T Bases of Exponentials, Cosines, and Sines Formed by Eigenfunctions of Differential Operators
%J Differencialʹnye uravneniâ
%D 2003
%P 619-623
%V 39
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_2003_39_5_a4/
%G ru
%F DE_2003_39_5_a4