@Misc{ 
  PinSquVec16a,
  author = { Pinamonti, Andrea and Squassina, Marco and Vecchi, Eugenio },
  title = { The Maz'ya-Shaposhnikova limit in the magnetic setting },
  journal = { Journal of Mathematical Analysis and Applications },
  year = { 2017 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3207/ },
  note = { cvgmt preprint}
}