%0 Journal Article
%A T. I. Kiguradze
%T Periodic boundary value problems for linear hyperbolic equations. II
%J Differencialʹnye uravneniâ
%D 1993
%P 637-645
%V 29
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1993_29_4_a8/
%G ru
%F DE_1993_29_4_a8