@article{Fruck:2019iK,
  author = "Fruck, Christian  and  Henningsen, Felix  and  Spannfellner, Christian",
  title = "{The POCAM as self-calibrating light source for the IceCube Upgrade}",
  doi = "10.22323/1.358.0908",
  journal = "PoS",
  year = 2019,
  volume = "ICRC2019",
  pages = "908"
}