@Article{ 
  Per24,
  author = { Perugini, Matteo },
  title = { Minimally singular functions and the rigidity problem for Steiner's  perimeter inequality },
  journal = { Calc. Var. Partial Differential Equations },
  year = { 2026 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6875/ },
  note = { cvgmt preprint}
}