@conference{4972,
  author = {Marek Sikora and Mitchell Begelman},
  title = {Neutrinos from hadronic cascades in active galactic nuclei},
  year = {1992},
  journal = {unknown},
  publisher = {Singapore: World-Scientific},
  address = {Honolulu, HI},
  note = {JILA Pub. 4751},
}