@incollection{Knobloch2007,
  author    = {Eberhard Knobloch},
  title     = {Vielheit der Welten - extraterrestrische Existenz},
  url       = {http://edoc.bbaw.de/oa/series/ren2T0S70UC2/PDF/24L7Ia44iN3YQ_320.pdf},
  year      = {2007},
}