1. Geometrical methods in the theory of ordinary differential equations;Arnold,1983
2. Annik Martin, Predator–prey models with delays and prey harvesting, Master of Science thesis, Dalhousie University Halifax, Nova Scotia, 1999.
3. Nonlinear Dynamics of Interacting Populations;Bazykin,1998
4. Mathematical Models in Population Biology and Epidemiology;Brauer,2001
5. Dynamics of a predator–prey model with non-monotonic response function;Broer;Discrete Contin. Dyn. Syst.,2007