TY  - JOUR
AU  - A. A. Arsen'ev
AU  - V. A. Il'in
TI  - mean value formula for the fundamental functions of the Beltrami operator, and a precise estimate of the sum of the squares of the fundamental functions
JO  - Doklady Akademii Nauk
PY  - 1970
SP  - 1263
EP  - 1266
VL  - 190
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1970_190_6_a0/
LA  - ru
ID  - DAN_1970_190_6_a0
ER  -