@article{Ekelöf:2009XP,
  author = "Ekelöf, Tord Johan Carl  and  Rathsman, Johan",
  title = "{Preface}",
  doi = "10.22323/1.073.0041",
  journal = "PoS",
  year = 2009,
  volume = "CHARGED2008",
  pages = "041"
}