TY  - JOUR
AU  - Yu. G. Borisovich
TI  - A weak topology and periodical solutions of differential equations
JO  - Doklady Akademii Nauk
PY  - 1961
SP  - 1269
EP  - 1272
VL  - 136
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1961_136_6_a1/
LA  - ru
ID  - DAN_1961_136_6_a1
ER  -