@Article{ 
  Vit20,
  author = { Vittone, Davide },
  title = { Lipschitz graphs and currents in Heisenberg groups },
  journal = { Forum Math. Sigma },
  year = { 2022 },
  doi = { https://doi.org/10.1017/fms.2021.84 },
  volume = { 10 },
  number = { Paper No. e6. },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4780/ },
  note = { cvgmt preprint}
}