@Article{ 
  BelCarSca22,
  author = { Bellettini, Giovanni and Carano, Simone and Scala, Riccardo },
  title = { The relaxed area of $S^1$-valued singular maps in the strict $BV$-convergence },
  journal = { ESAIM: Control, Optimization and Calculus of Variations },
  year = { 2022 },
  volume = { 28 },
  number = { 56 },
  pages = { 38 },
  URL = { http://cvgmt.sns.it/paper/5440/ },
  note = { cvgmt preprint}
}