TY  - JOUR
AU  - Alwash, Mohamad A.M.
TI  - Periodic solutions of polynomial non-autonomous differential equations
JO  - Electronic Journal of Differential Equations
PY  - 2005
VL  - 2005
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a131/
LA  - en
ID  - EJDE_2005__2005__a131
ER  -