@inproceedings{LeRay:2019Zy,
  author = "Le Ray, Ashlynn Merial  and  Chen, Andrew",
  title = "{Constraining the star formation history withFermi-LAT observations of the gamma-ray opacity of the universe}",
  doi = "10.22323/1.338.0003",
  booktitle = "Proceedings of High Energy Astrophysics in Southern Africa {\textemdash} PoS(HEASA2018)",
  year = 2019,
  volume = "338",
  pages = "003"
}