TY  - JOUR
AU  - A. L. Skubachevskii
TI  - On Necessary Conditions for the Fredholm Solvability of Nonlocal Elliptic Problems
JO  - Informatics and Automation
PY  - 2008
SP  - 248
EP  - 263
VL  - 260
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_2008_260_a16/
LA  - ru
ID  - TRSPY_2008_260_a16
ER  -