TY  - JOUR
AU  - V. M. Babich
TI  - Hadamard's method and the asymptotics of the spectral function of a second-order differential operator
JO  - Matematičeskie zametki
PY  - 1980
SP  - 689
EP  - 694
VL  - 28
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1980_28_5_a4/
LA  - ru
ID  - MZM_1980_28_5_a4
ER  -