1. F. Beguin, C. Bonatti, Bin Yu, Simple Smale flows on 3-manifolds, draft version dated December 23, 2014.
2. Knotted periodic orbits in dynamical systems II: knot holders for fibered knots;Birman,1983
3. Knots and Links in Three-Dimensional Flows;Ghrist,1997
4. Homology and Dynamical Systems;Franks,1982
5. Knots, links and symbolic dynamics;Franks;Ann. Math.,1981