@Misc{ 
  LuiPan17,
  author = { Luisto, Rami and Pankka, Pekka },
  title = { Stoïlow's theorem revisited },
  journal = {  },
  year = { 2017 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4147/ },
  note = { cvgmt preprint}
}