TY  - JOUR
AU  - K. N. Ospanov
TI  - Solvability conditions for the first order elliptic systems on the plane
JO  - Eurasian mathematical journal
PY  - 2012
SP  - 139
EP  - 142
VL  - 3
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/EMJ_2012_3_1_a9/
LA  - en
ID  - EMJ_2012_3_1_a9
ER  -