@misc{indiciaef15cbc4d7a26,
  title = {Are There Intrinsically X-Ray Quiet Quasars},
  author = {Gallagher, S. C. and Brandt, W. N. and Laor, A. and Elvis, Martin and Mathur, S. and Wills, Beverly J. and Iyomoto, N. and White, Nicholas},
  year = {2000},
  url = {https://ntrs.nasa.gov/citations/20000091582},
  note = {Source identifier: 20000091582}
}