TY  - JOUR
AU  - B. M. Levitan
TI  - On the continuation of solutions of partial differential equations
JO  - Doklady Akademii Nauk
PY  - 1962
SP  - 30
EP  - 33
VL  - 146
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1962_146_1_a7/
LA  - ru
ID  - DAN_1962_146_1_a7
ER  -