TY  - JOUR
AU  - Yu. V. Egorov
AU  - V. A. Kondrat'ev
TI  - On an estimate of the number of points of the negative spectrum of the Schr\"odinger operator
JO  - Sbornik. Mathematics
PY  - 1989
SP  - 551
EP  - 566
VL  - 62
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1989_62_2_a13/
LA  - en
ID  - SM_1989_62_2_a13
ER  -