TY  - JOUR
AU  - O. A. Ochakovskaya
TI  - Theorems on ball mean values for solutions of the Helmholtz equation on unbounded domains
JO  - Izvestiya. Mathematics 
PY  - 2012
SP  - 365
EP  - 374
VL  - 76
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_2012_76_2_a6/
LA  - en
ID  - IM2_2012_76_2_a6
ER  -