@Misc{ 
  BelElsSca21,
  author = { Bellettini, Giovanni and Elshorbagy, Alaa and Scala, Riccardo },
  title = { The $L^1$-relaxed area of the graph of the vortex map },
  journal = {  },
  year = { 2021 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5055/ },
  note = { cvgmt preprint}
}