@inproceedings{Kachelriess:2003dd,
  author = "Kachelriess, Michael",
  title = "{Particle physics motivated solutions to the UHECR puzzle}",
  doi = "10.22323/1.010.0027",
  booktitle = "Proceedings of International Workshop on Astroparticle and High Energy Physics {\textemdash} PoS(AHEP2003)",
  year = 2003,
  volume = "010",
  pages = "027"
}