TY  - JOUR
AU  - Yankson, Ernest
TI  - Positive periodic solutions for second-order neutral differential equations with functional delay
JO  - Electronic Journal of Differential Equations
PY  - 2012
VL  - 2012
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/EJDE_2012__2012__a37/
LA  - en
ID  - EJDE_2012__2012__a37
ER  -