TY  - JOUR
AU  - P. L. Gurevich
TI  - On the index instability for some nonlocal elliptic problems
JO  - Trudy Seminara im. I.G. Petrovskogo
PY  - 2007
SP  - 179
EP  - 194
VL  - 26
IS  - 26
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TSP_2007_26_26_a7/
LA  - ru
ID  - TSP_2007_26_26_a7
ER  -