%0 Journal Article %A Liu, Qiming %A Dong, Shijie %T Periodic solutions for a delayed predator-prey system with dispersal and impulses %J Electronic Journal of Differential Equations %D 2005 %V 2005 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a267/ %G en %F EJDE_2005__2005__a267