@conference{1520,
  author = {Marek Sikora and G. Madejski and Jean-Pierre Lasota and Mitchell Begelman},
  title = {Are Quasar Jets Matter or Poynting Flux Dominated?},
  year = {2005},
  journal = {AIP},
  volume = {801},
  pages = {165-172},
  publisher = {AIP},
  address = {Torun (Poland)},
  doi = {10.1063/1.2141855},
}