TY  - JOUR
AU  - S. Z. Levendorskii
TI  - On generalizations of the Weyl formula for degenerate operators
JO  - Doklady Akademii Nauk
PY  - 1987
SP  - 1297
EP  - 1301
VL  - 293
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1987_293_6_a2/
LA  - ru
ID  - DAN_1987_293_6_a2
ER  -