@misc{indiciaedba7766e8e0c,
  title = {Space distribution of extragalactic sources - Cosmology versus evolution},
  author = {Cavaliere, A. and Maccacaro, T.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900054771},
  note = {Source identifier: 19900054771}
}