TY  - JOUR
AU  - V. V. Volchkov
TI  - Theorems on ball mean values in symmetric spaces
JO  - Sbornik. Mathematics
PY  - 2001
SP  - 1275
EP  - 1296
VL  - 192
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_2001_192_9_a1/
LA  - en
ID  - SM_2001_192_9_a1
ER  -