@article{4890,
  author = {R. Becker and D. Helfand and R. White},
  title = {The discovery of an X-ray selected, radio-loud quasar at Z = 3.9},
  year = {1992},
  journal = {The Astronomical Journal},
  volume = {104},
  pages = {531},
  month = {Jan-08-1992},
  issn = {00046256},
  url = {http://articles.adsabs.harvard.edu/full/1992AJ....104..531B},
  doi = {10.1086/116251},
}