TY  - JOUR
AU  - N. V. Medvedev
TI  - Periodic solutions of differential equations in a Banach space
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 542
EP  - 545
VL  - 184
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_184_3_a8/
LA  - ru
ID  - DAN_1969_184_3_a8
ER  -