@misc{indiciae12882263178b,
  title = {The cosmological evolution and luminosity function of X-ray selected active galactic nuclei},
  author = {Maccacaro, T. and Gioia, I. M. and Avni, Y. and Giommi, P. and Griffiths, R. E. and Liebert, J. and Stocke, J. and Danziger, J.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19830045181},
  note = {Source identifier: 19830045181}
}