@misc{indiciae13ee3a8eca04,
  title = {The faint quasar luminosity function},
  author = {Kron, Richard G. and Bershady, Matthew A. and Munn, Jeffrey A. and Smetanka, John J. and Majewski, Steven and Koo, David C.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19930044784},
  note = {Source identifier: 19930044784}
}