1. Hebb and Darwin
2. Synaptic Darwinism and neocortical function;Adams;Neurocomputing,2002
3. Qualitative Theory of Dynamical Systems of the Second Order;Andronov,1966
4. Theory of Bifurcations of Dynamical Systems in a Plane;Andronov,1967
5. Methods and Examples of the Qualitative Analysis of Dynamical Systems in a Plane;Bautin,1990