List of citations in Numdam for : On the divergence of geodesic rays in manifolds without conjugate points, dynamics of the geodesic flow and global geometry
Geometric methods in dynamics (II) : Volume in honor of Jacob Palis, Astérisque, no. 287 (2003), pp. 231-249.
Annales Henri Lebesgue, Volume 4 (2021), pp. 759-784.