@misc{indiciaee42a64ea05cd,
  title = {QSO envelopes - Optically thin, low density, and normal abundances},
  author = {Scargle, J. D. and Caroff, L. J. and Tarter, C. B.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19740047177},
  note = {Source identifier: 19740047177}
}