TY  - JOUR
AU  - V. M. Polyakova
TI  - Level lines of the solution to an elliptic equation
JO  - Doklady Akademii Nauk
PY  - 1961
SP  - 1259
EP  - 1262
VL  - 140
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1961_140_6_a6/
LA  - ru
ID  - DAN_1961_140_6_a6
ER  -