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Existence of chaos in control systems with delayed feedback. (English) Zbl 0477.93040

##### MSC:
 93C30 Control/observation systems governed by functional relations other than differential equations (such as hybrid and switching systems) 34K25 Asymptotic theory of functional-differential equations 58K35 Catastrophe theory 37C75 Stability theory for smooth dynamical systems 37G99 Local and nonlocal bifurcation theory for dynamical systems
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##### References:
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