\Bibitem{ArtMaz67} \by M.~Artin, B.~Mazur \paper On periodic points \jour Matematika \yr 1967 \vol 11 \issue 5 \pages 3--20 \mathnet{http://mi.mathnet.ru/mat444} \mathscinet{https://mathscinet.ams.org/mathscinet-getitem?mr=0176482} \zmath{https://zbmath.org/?q=an:0127.13401} \transl \jour Ann. of Math. \yr 1965 \vol 81 \pages 82--99