%0 Journal Article
%A Ya. N. Mamedov
%T On the eigenvalue problem for equations of mixed type
%J Differencialʹnye uravneniâ
%D 1993
%P 95-103
%V 29
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1993_29_1_a12/
%G ru
%F DE_1993_29_1_a12