TY  - JOUR
AU  - A. M. Nakhushev
TI  - A three-dimensional analog of Gellerstedt's problem
JO  - Differencialʹnye uravneniâ
PY  - 1968
SP  - 52
EP  - 62
VL  - 4
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1968_4_1_a4/
LA  - ru
ID  - DE_1968_4_1_a4
ER  -