@conference{6257,
  author = {Marek Sikora and G. Madejski and Mitchell Begelman},
  title = {Variability, power, and pair content of AGN jets},
  year = {1997},
  journal = {unkniwn},
  url = {http://arxiv.org/pdf/astro-ph/9708261.pdf},
  note = {JILA Pub. 6007},
}