TY  - JOUR
AU  - S. Z. Levendorskii
TI  - Asymptotic behavior of the spectrum of problems of the form $Au=tBu$ for operators that are elliptic in the Douglis--Nirenberg sense
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1984
SP  - 84
EP  - 85
VL  - 18
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1984_18_3_a15/
LA  - ru
ID  - FAA_1984_18_3_a15
ER  -