References

• 1968, Chern and Smale, eds., Global Analysis, Berkeley.
• 1969, Chillingworth, David, ed., Symp. on Diff. Eqns. and Dyn. Systems, Warwick.
• 1977, Zeeman, Catastrophe Theory.
• 1990, Hirsch, Marsden, and Shub, eds., From Topology to Computation: Proc. of the Smalefest.
• 1991, Intl. J. Bifurcations and Chaos
• 2002, Chua and Roska, Cellular Neural Networks and Visual Computing.