TY  - JOUR
AU  - V. Ya. Ivrii
TI  - On precise asymptotics of the eigenvalues for two classes of differential operators in $\mathbf{R}^d$
JO  - Doklady Akademii Nauk
PY  - 1984
SP  - 268
EP  - 270
VL  - 276
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1984_276_2_a1/
LA  - ru
ID  - DAN_1984_276_2_a1
ER  -