TY  - JOUR
AU  - D. Safarov
TI  - Periodic solutions of first-order elliptic systems
JO  - Differencialʹnye uravneniâ
PY  - 1981
SP  - 1468
EP  - 1477
VL  - 17
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1981_17_8_a10/
LA  - ru
ID  - DE_1981_17_8_a10
ER  -