Permanence of a discrete n -species Schoener competition system with time delays and feedback controls. Li, Xuepeng; Yang, Wensheng — 2009 Advances in Difference Equations [electronic only]
Permanence of a semi-ratio-dependent predator-prey system with nonmonotonic functional response and time delay. Li, Xuepeng; Yang, Wensheng — 2009 Abstract and Applied Analysis
Permanence of a discrete model of mutualism with infinite deviating arguments. Li, Xuepeng; Yang, Wensheng — 2010 Discrete Dynamics in Nature and Society
Permanence of a discrete predator-prey system with Beddington-DeAngelis functional response and feedback controls. Li, Xuepeng; Yang, Wensheng — 2008 Discrete Dynamics in Nature and Society
Quadratic systems with homoclinic cycles described by quintic curves. Zheng, Yanhong; Li, Xuepeng — 2001 Applied Mathematics E-Notes [electronic only]