@Article{ 
  BorKli23,
  author = { Borza, Samuël and Klingenberg, Wilhelm },
  title = { Regularity and Continuity Properties of the Sub-Riemannian Exponential Map },
  journal = { Journal of Dynamical and Control Systems },
  year = { 2023 },
  doi = { 10.1007/s10883-022-09624-y },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6119/ },
  note = { cvgmt preprint}
}