@article{Voelk:2011hE,
  author = "Voelk, Heinrich  and  Lisenfeld, Ute",
  title = "{Shock acceleration of relativistic particles in galaxy-galaxy collisions}",
  doi = "10.22323/1.123.0139",
  journal = "PoS",
  year = 2011,
  volume = "Texas 2010",
  pages = "139"
}