1. The origins and evolution of predator–prey theory;Berryman;Ecology,1992
2. Bifurcations of a limit cycle for a family of vector fields on the plan;Bogdanov;Selecta Math. Soviet.,1981
3. Versal deformations of a singular point on the plan in the case of zero eigen-values;Bogdanov;Selecta Math. Soviet.,1981
4. The qualitative analysis of two species predator–prey model with Holling’s type III functional response;Chen;Appl. Math. Mech.,1986
5. Methods of Bifurcation Theory;Chow,1982