@inproceedings{Kachelriess:2011Zk,
  author = "Kachelriess, Michael",
  title = "{Constraints from electromagnetic cascades in the EBL}",
  doi = "10.22323/1.123.0224",
  booktitle = "Proceedings of 25th Texas Symposium on Relativistic Astrophysics  {\textemdash} PoS(Texas 2010)",
  year = 2011,
  volume = "123",
  pages = "224"
}