@article{Reimer:2011b4,
  author = "Reimer, Anita",
  title = "{Constraints on the gamma-ray opacity of the Universe with the Fermi-LAT instrument}",
  doi = "10.22323/1.121.0013",
  journal = "PoS",
  year = 2011,
  volume = "CRF 2010",
  pages = "013"
}