A. Agrachev, D. Barilari, and U. Boscain, Introduction to Riemannian and Sub-Riemannian Geometry

A. Agrachev, U. Boscain, and M. Sigalotti, A Gauss-Bonnet like formula on two-dimensional almost-Riemannian manifolds, Discrete Contin, Dyn. Syst, vol.20, issue.4, pp.801-822, 2008.

A. Agrachev, U. Boscain, G. Charlot, R. Ghezzi, and M. Sigalotti, Two-dimensional almost-Riemannian structures with tangency points, Proceedings of the 48h IEEE Conference on Decision and Control (CDC) held jointly with 2009 28th Chinese Control Conference, pp.793-807, 2010.
DOI : 10.1109/CDC.2009.5400489
URL : https://hal.archives-ouvertes.fr/hal-00410127

V. Ayala and A. , Hacibekiroglu Observable linear pairs, Comput. Appl. math, vol.16, issue.3, pp.205-214, 1997.

V. Ayala and W. , Kliemann A decomposition theorem for singular control systems on Lie groups, Computers and Mathematics with applications 45, pp.635-646, 2003.

V. Ayala, J. C. Rodriguez, and L. A. , Optimality on Homogeneous Spaces, and the Angle System Associated with a Bilinear Control System, SIAM Journal on Control and Optimization, vol.48, issue.4, pp.2636-2650
DOI : 10.1137/080736867

L. , S. Martin, and V. Ayala, Controllability properties of a class of control systems on Lie Groups, Nonlinear control in the year 2000, L.N. in Control and I.S, vol.1, issue.258, pp.83-92, 2001.

V. Ayala and J. , Tirao Linear control systems on Lie groups and Controllability, Proceedings of Symposia in Pure Mathematics, pp.47-64, 1999.

B. Bonnard, J. Caillau, R. Sinclair, and M. Tanaka, Conjugate and cut loci of a two-sphere of revolution with application to optimal control, Annales de l'Institut Henri Poincare (C) Non Linear Analysis, vol.26, issue.4, pp.1081-1098, 2009.
DOI : 10.1016/j.anihpc.2008.03.010
URL : https://hal.archives-ouvertes.fr/hal-00212075

B. Bonnard, G. Charlot, R. Ghezzi, and G. Janin, The sphere and the cut locus at a tangency point in two-dimensional almost-Riemannian geometry, Journal of Dynamical and Control Systems, vol.332, issue.1, pp.141-161, 2011.
DOI : 10.1007/s10883-011-9113-4
URL : https://hal.archives-ouvertes.fr/hal-00517193

U. Boscain and M. Sigalotti, High-order angles in almost-Riemannian geometry, S??minaire de th??orie spectrale et g??om??trie, vol.25, issue.25, pp.41-54, 2005.
DOI : 10.5802/tsg.246
URL : https://hal.archives-ouvertes.fr/hal-00589708

U. Boscain, G. Charlot, M. Gaye, and P. , Mason Local properties of almost-Riemannian structures in dimension 3, 2014.

U. Boscain, G. Charlot, R. Ghezzi, and M. Sigalotti, Lipschitz Classification of Almost-Riemannian Distances on Compact Oriented Surfaces, Journal of Geometric Analysis, vol.4, issue.1, pp.438-455, 2013.
DOI : 10.1007/s12220-011-9262-4
URL : https://hal.archives-ouvertes.fr/hal-00464414

U. Boscain, G. Charlot, and R. Ghezzi, Normal forms and invariants for 2-dimensional almost- Riemannian structures, Differential Geometry and its Applications, pp.31-41, 2013.

U. Boscain and C. Laurent, L???op??rateur de Laplace-Beltrami en G??om??trie presque-Riemannienne, Annales de l???institut Fourier, vol.63, issue.5
DOI : 10.5802/aif.2813

M. Dath and P. , Jouan Controllability of linear systems on low dimensional nilpotent and solvable Lie groups, accepted for publication in JDCS, DOI 10, pp.10883-10897, 1007.

. Ph, Jouan On the existence of observable linear systems on Lie Groups, Journal of Dynamical and Control Systems, vol.15, issue.2, pp.263-276, 2009.

. Ph, Jouan Equivalence of Control Systems with Linear Systems on Lie Groups and Homogeneous Spaces ESAIM: Control Optimization and Calculus of Variations, pp.956-973, 2010.

. Ph, Jouan Controllability of linear system on Lie groups, Journal of Dynamical and control systems, vol.17, issue.4, pp.591-616, 2011.

. Ph, Jouan Invariant measures and controllability of finite systems on compact manifolds, ESAIM: COCV, vol.18, pp.643-655, 2012.

L. S. Pontryagin, V. G. Boltyanskii, R. V. Gamkrelidze, and E. F. Mishchenko, The mathematical theory of optimal processes, 1962.