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2. The Mechanics of Vacillation
3. Period Three Implies Chaos
4. Simple mathematical models with very complicated dynamics
5. (5)T.Kohda, Y. Oono, “Necessary and sufficient condition for entrainment of dynamical systems with a certain class of coupling,” Proc. IEEE 1979 Int. Symp. on Circuits and Systems, pp.402-403, 1979.