TY  - JOUR
AU  - A. G. Kostyuchenko
TI  - On the spectral properties of elliptical operators
JO  - Doklady Akademii Nauk
PY  - 1957
SP  - 34
EP  - 37
VL  - 115
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1957_115_1_a7/
LA  - ru
ID  - DAN_1957_115_1_a7
ER  -