@inproceedings{Contopoulos:2019qk,
  author = "Contopoulos, Ioannis",
  title = "{A Cosmic Battery in accretion flows around astrophysical black holes}",
  doi = "10.22323/1.329.0012",
  booktitle = "Proceedings of International Conference on Black Holes as Cosmic Batteries: UHECRs and Multimessenger Astronomy {\textemdash} PoS(BHCB2018)",
  year = 2019,
  volume = "329",
  pages = "012"
}