TY  - JOUR
AU  - V. V. Filippov
TI  - On the topological properties of the solution spaces of ordinary
JO  - Doklady Akademii Nauk
PY  - 1997
SP  - 735
EP  - 738
VL  - 352
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1997_352_6_a3/
LA  - ru
ID  - DAN_1997_352_6_a3
ER  -