%0 Journal Article
%A A. B. Budak
%T Expansion in eigenfunctions of a fourth-order differential operator with discontinuous coefficients
%J Differencialʹnye uravneniâ
%D 1980
%P 2115-2126
%V 16
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1980_16_12_a0/
%G ru
%F DE_1980_16_12_a0