%0 Journal Article
%A E. V. Antipova
%T On the incompleteness of the system of root functions of the Tricomi problem for the Lavrent'ev--Bitsadze equation
%J Differencialʹnye uravneniâ
%D 1993
%P 1451-1452
%V 29
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1993_29_8_a20/
%G ru
%F DE_1993_29_8_a20