@article{Fargion:2001R4,
  author = "Fargion, Daniele",
  title = "{Upward and horizontal tau airshowers by ultra high energy neutrinos}",
  doi = "10.22323/1.007.0208",
  journal = "PoS",
  year = 2001,
  volume = "hep2001",
  pages = "208"
}