1N. A. Agiza, E. M. Elabbasy, H. EL-Metwally and A. A. Elsadany, Chaotic dynamicsof a discrete prey—predator model with Holling type II, Nonlinear Anal. Real WorldAnal. 10 (2009) 116-129.
2M. Basson and M. J. Fogarty, Harvesting in discrete-time predator-prey systems,Math. Biosci. 141 (1997) 41-74.
3C. Celik and O. Duman, Allee effect in a discrete-time predator-prey system, ChaosSolitons Fractals 40 (2009) 1956-1962.
4L. Chen, Mathematical Models and Methods in Ecology (Science Press, Beijing, 1988)(in Chinese).
5X. Chen, Periodicity in a nonlinear discrete predator-prey system with state depen-dent delays, Nonlinear Anal. Real World Appl. 8 (2007) 435-446.
6G. Chen, Z. Teng and Z. Hu, Analysis of stability for a discrete ratio-dependentpredator-prey system, Indian J. Pure Appl. Math. 42(1) (2011) 1-26.
7Y. H. Fan and W. T. Li, Permanence for a delayed discrete ratio-dependent predator-prey system with Holling type functional response, J. Math. Anal. Appl 299 (2004)357-374.
8M. Fan and K. Wang, Periodic solutions of a discrete time nonautonomous ratio-dependent predator-prey system, Math. Comput Modelling 35 (2002) 951—961.
9M. Fazly and M. Hesaaraki, Periodic solutions for discrete time predator-prey systemwith monotone functional responses, C. R. Acad. Sci. Paris, Ser. 1345 (2007) 199-202.
10Z. He and X. Lai, Bifurcation and chaotic behavior of a discrete-time predator-preysystem, Nonlinear Anal. Real World Appl. 12 (2011) 403-417; 45 (2007) 199—202.