%0 Journal Article
%A T. Sh. Kal'menov
%T Selfadjoint boundary value problems for the Tricomi equation
%J Differencialʹnye uravneniâ
%D 1983
%P 66-75
%V 19
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1983_19_1_a9/
%G ru
%F DE_1983_19_1_a9