@article{Frebel:2011Rh,
  author = "Frebel, Anna",
  title = "{Observations of the most metal-poor stars and what they tell us about the early Universe}",
  doi = "10.22323/1.100.0005",
  journal = "PoS",
  year = 2011,
  volume = "NIC XI",
  pages = "005"
}