TY  - JOUR
AU  - Zhao, Kaihong
AU  - Li, Yongkun
TI  - Multiple positive periodic solutions to a non-autonomous Lotka-Volterra predator-prey system with harvesting terms
JO  - Electronic Journal of Differential Equations
PY  - 2011
VL  - 2011
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/EJDE_2011__2011__a66/
LA  - en
ID  - EJDE_2011__2011__a66
ER  -