TY  - JOUR
AU  - N. A. Sidorov
AU  - O. A. Romanova
AU  - E. B. Blagodatskaya
TI  - Partial differential equations with an operator of finite index at the principal part
JO  - Differencialʹnye uravneniâ
PY  - 1994
SP  - 729
EP  - 731
VL  - 30
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1994_30_4_a20/
LA  - ru
ID  - DE_1994_30_4_a20
ER  -