@Misc{ 
  FogKas22,
  author = { Foghem, Guy and Kassmann, Moritz },
  title = { A general framework for nonlocal Neumann problems },
  journal = {  },
  year = { 2022 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5686/ },
  note = { cvgmt preprint}
}