TY  - JOUR
AU  - V. V. Kovrizhkin
TI  - Smoothness of the solutions of the generalized Tricomi problem
JO  - Differencialʹnye uravneniâ
PY  - 1973
SP  - 97
EP  - 105
VL  - 9
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1973_9_1_a9/
LA  - ru
ID  - DE_1973_9_1_a9
ER  -