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Communicated by W. Magnus
This research was supported by the United States National Science Foundation under Grant GP-4171.
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Hochstadt, H. On the determination of a Hill's equation from its spectrum. Arch. Rational Mech. Anal. 19, 353–362 (1965). https://doi.org/10.1007/BF00253484
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DOI: https://doi.org/10.1007/BF00253484