TY  - JOUR
AU  - Fan, Xuanlong
AU  - Li, Yongkun
TI  - Positive periodic solutions of neutral functional differential equations with a parameter and impulse
JO  - Electronic Journal of Differential Equations
PY  - 2008
VL  - 2008
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/EJDE_2008__2008__a57/
LA  - en
ID  - EJDE_2008__2008__a57
ER  -