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This paper was written while the first three authors were visiting the University of Dortmund in 1992. The first two authors thankfully acknowledge the support offered by TEMPUS and the University of Dortmund.
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Crăciun, G., Horja, P., Prunescu, M. et al. Most homeomorphisms of the circle are semiperiodic. Arch. Math 64, 452–458 (1995). https://doi.org/10.1007/BF01197224
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DOI: https://doi.org/10.1007/BF01197224