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Also partially supported by the Institute for Fluid Dynamics and NSF grant GP-4921.
Also partially supported by an NSF Cooperative Fellowship and NSF grant GP-6114.
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Strauss, A., Yorke, J.A. On asymptotically autonomous differential equations. Math. Systems Theory 1, 175–182 (1967). https://doi.org/10.1007/BF01705527
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DOI: https://doi.org/10.1007/BF01705527