@inproceedings{Choi:201982,
  author = "Choi, Koun",
  title = "{Long Term Performance of the Pierre Auger Observatory}",
  doi = "10.22323/1.358.0222",
  booktitle = "Proceedings of 36th International Cosmic Ray Conference {\textemdash} PoS(ICRC2019)",
  year = 2019,
  volume = "358",
  pages = "222"
}