Kaloshin, Vadim, and Brian R. Hunt. “A Stretched Exponential Bound on the Rate of Growth of the Number of Periodic Points for Prevalent Diffeomorphisms I.”https://doi.org/10.1090/s1079-6762-01-00090-7__Electronic Research Announcements of the American Mathematical Society. American Mathematical Society, 2001.https://doi.org/10.1090/s1079-6762-01-00090-7 .

Kaloshin, Vadim, and Brian R. Hunt. “A Stretched Exponential Bound on the Rate of Growth of the Number of Periodic Points for Prevalent Diffeomorphisms II.”https://doi.org/10.1090/s1079-6762-01-00091-9__Electronic Research Announcements of the American Mathematical Society. American Mathematical Society, 2001.https://doi.org/10.1090/s1079-6762-01-00091-9 .