@misc{indiciaed79fab7c0f95,
  title = {The Medium Sensitivity Survey and the X-ray selected quasar sample},
  author = {Gioia, Isabella M. and Maccacaro, Tommaso and Schild, Rudolph and Stocke, John and Danziger, John},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19870043969},
  note = {Source identifier: 19870043969}
}