A. A. Agrachev and Y. L. Sachkov, Control Theory from the Geometric Viewpoint, Encyclopaedia of Mathematical Sciences, vol.87, 2004.
DOI : 10.1007/978-3-662-06404-7

G. Contreras, Geodesic flows with positive topological entropy, twist maps and hyperbolicity, Annals of Mathematics, vol.172, issue.2, pp.761-808, 2010.
DOI : 10.4007/annals.2010.172.761

G. Contreras and G. Paternain, Genericity of Geodesic Flows with Positive Topological Entropy on S2, Journal of Differential Geometry, vol.61, issue.1, pp.1-49, 2002.
DOI : 10.4310/jdg/1090351319

G. Contreras and R. Iturriaga, Convex Hamiltonians without conjugate points, Ergodic Theory and Dynamical Systems, vol.19, issue.4, pp.901-952, 1999.
DOI : 10.1017/S014338579913387X

J. Coron, Control and nonlinearity, Mathematical Surveys and Monographs, vol.136, 2007.
DOI : 10.1090/surv/136

A. Figalli and L. Rifford, Closing Aubry sets I, 2011.
DOI : 10.1002/cpa.21511

URL : https://hal.archives-ouvertes.fr/hal-00935965

A. Figalli and L. Rifford, Closing Aubry Sets II, Communications on Pure and Applied Mathematics, vol.33, issue.1-3, 2011.
DOI : 10.1002/cpa.21512

URL : https://hal.archives-ouvertes.fr/hal-00935970

J. Franks, Necessary conditions for stability of diffeomorphisms, Transactions of the American Mathematical Society, vol.158, issue.2, pp.301-308, 1971.
DOI : 10.1090/S0002-9947-1971-0283812-3

H. Hermes, Local controllability and sufficient conditions in singular problems, Journal of Differential Equations, vol.20, issue.1, pp.213-232, 1976.
DOI : 10.1016/0022-0396(76)90103-0

A. Lazrag, L. Rifford, and R. Ruggiero, Franks' lemma for C 2 -Mañé perturbations of Riemannian metrics and application to persistence, Progress

M. Paternain, Expansive geodesic flows on surfaces. Ergodic Theory Dynam, Systems, vol.13, issue.1, pp.153-165, 1993.

L. Rifford, Sub-Riemannian Geometry and Optimal Transport, p.2012
DOI : 10.1007/978-3-319-04804-8

URL : https://hal.archives-ouvertes.fr/hal-01131787

L. Rifford and R. Ruggiero, Generic Properties of Closed Orbits of Hamiltonian Flows from Mane's Viewpoint, International Mathematics Research Notices, vol.22, pp.5246-5265, 2012.
DOI : 10.1093/imrn/rnr231

D. Visscher, An elementary proof of Franks' lemma for geodesic flows

T. Vivier, Robustly transive 3-dimensional regular energy surfaces are Anosov, 2005.