TY  - JOUR
AU  - E. V. Antipova
TI  - On the incompleteness of the system of root functions of the Tricomi problem for the Lavrent'ev--Bitsadze equation
JO  - Differencialʹnye uravneniâ
PY  - 1993
SP  - 1451
EP  - 1452
VL  - 29
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1993_29_8_a20/
LA  - ru
ID  - DE_1993_29_8_a20
ER  -