@article{Horns:2015mq,
  author = "Horns, Dieter",
  title = "{Photon-ALP conversion in intergalactic space}",
  doi = "10.22323/1.218.0020",
  journal = "PoS",
  year = 2015,
  volume = "Scineghe2014",
  pages = "020"
}