@Article{ 
  Mra20a,
  author = { Mramor, Alexander },
  title = { An unknottedness result for noncompact self shrinkers },
  journal = { J. Reine Angew. Math. },
  year = { 2020 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6930/ },
  note = { cvgmt preprint}
}