TY  - JOUR
AU  - I. Birindelli
AU  - E. Mitidieri
AU  - G. Sweers
TI  - Existence of the principal eigenvalue for cooperative elliptic systems in a general domain
JO  - Differencialʹnye uravneniâ
PY  - 1999
SP  - 325
EP  - 333
VL  - 35
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1999_35_3_a6/
LA  - ru
ID  - DE_1999_35_3_a6
ER  -