@Misc{ 
  Csa17,
  author = { Csato, Gyula },
  title = { On the isoperimetric problem with perimeter density r^p },
  journal = {  },
  year = { 2017 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5335/ },
  note = { cvgmt preprint}
}