@inproceedings{Caprioli:20199Q,
  author = "Caprioli, Damiano  and  Haggerty, Colby",
  title = "{The Issue with Diffusive Shock Acceleration}",
  doi = "10.22323/1.358.0209",
  booktitle = "Proceedings of 36th International Cosmic Ray Conference {\textemdash} PoS(ICRC2019)",
  year = 2019,
  volume = "358",
  pages = "209"
}