@Misc{ 
  MonMor18,
  author = { Monti, Roberto and Morbidelli, Daniele },
  title = { John and uniform domains in generalized Siegel boundaries },
  journal = { Potential Analysis },
  year = { 2019 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4094/ },
  note = { cvgmt preprint}
}