TY  - JOUR
AU  - R. V. Guseinov
TI  - On the number of negative spectrum points of elliptic operators
JO  - Trudy Seminara im. I.G. Petrovskogo
PY  - 2009
SP  - 67
EP  - 73
VL  - 27
IS  - 27
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TSP_2009_27_27_a1/
LA  - ru
ID  - TSP_2009_27_27_a1
ER  -