@Misc{ 
  DeLFle23,
  author = { De Lellis, Camillo and Fleschler, Ian },
  title = { An elementary rectifiability lemma and some applications },
  journal = {  },
  year = { 2023 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6112/ },
  note = { cvgmt preprint}
}