@article{Farrar:2016s5,
  author = "Farrar, Glennys R.  and  Unger, Michael  and  Anchordoqui, Luis A.",
  title = "{The origin of the ankle in the UHECR spectrum, and of the extragalactic protons below it }",
  doi = "10.22323/1.236.0513",
  journal = "PoS",
  year = 2016,
  volume = "ICRC2015",
  pages = "513"
}