@Misc{ 
  BoCaFrSi21,
  author = { Boscain, Ugo and Cannarsa, Daniele and Franceschi, Valentina and Sigalotti, Mario },
  title = { Local controllability does imply global controllability },
  journal = {  },
  year = { 2021 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5303/ },
  note = { cvgmt preprint}
}