TY  - JOUR
AU  - Weiwen Shao
AU  - Fuxing Zhang
AU  - Ya Li
TI  - Existence and uniqueness of periodic solutions for a kind of
 nonlinear $n$th order differential equations with delays
JO  - Annales Polonici Mathematici
PY  - 2008
SP  - 15
EP  - 27
VL  - 94
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap94-1-2/
DO  - 10.4064/ap94-1-2
LA  - en
ID  - 10_4064_ap94_1_2
ER  -