@article{3231,
  author = {Marek Sikora and Mitchell Begelman},
  title = {Magnetic flux Paradigm for Radio Loudness of Active Galactic Nuclei},
  year = {2013},
  journal = {The Astrophysical Journal},
  volume = {764},
  pages = {L24},
  month = {2013-02},
  issn = {2041-8205},
  doi = {10.1088/2041-8205/764/2/L24},
}