@Misc{ 
  CamKauRad22a,
  author = { Campbell, Daniel and Kauranen, Aapo and Radici, Emanuela },
  title = { Minimal Extension for the $α$-Manhattan norm },
  journal = {  },
  year = { 2022 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5869/ },
  note = { cvgmt preprint}
}