@Misc{ 
  FraMonSoc23,
  author = { Franceschi, Valentina and Monti, Roberto and Socionovo, Alessandro },
  title = { Mean value formulas on surfaces in Grushin spaces },
  journal = {  },
  year = { 2023 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5952/ },
  note = { cvgmt preprint}
}