References

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[5] R. Easton, Isolating Blocks and Epsilon Chains for Maps, preprint.

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[8] S.M. Hammel, J.A. Yorke and C. Grebogi, Numerical orbits of chaotic processes represent true orbits, Bull. Amer. Math. Soc. 19 (1988), 465-469.

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[11] D. Norton, PhD Thesis, University of Minnesota (in progress)

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