TY  - JOUR
AU  - R. R. Ashurov
TI  - An asymptotic estimate in $L_2$ for the Riesz means of the spectral function of an elliptic operator
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 3
EP  - 14
VL  - 25
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_1_a0/
LA  - ru
ID  - DE_1989_25_1_a0
ER  -