A.A. Agrachev, D. Barilari, U. Boscain, Introduction to geodesics in sub-Riemannian geometry

Title: Introduction to geodesics in sub-Riemannian geometry
Authors: A.A. Agrachev, D. Barilari, U. Boscain
Journal title: Geometry, Analysis and Dynamics on sub-Riemannian manifolds, EMS Ser. Lect. Math.