@misc{indiciae0f34b409e6c0,
  title = {Optically thin broad-line clouds in active galactic nuclei},
  author = {Shields, Joseph C. and Ferland, Gary J. and Peterson, Bradley M.},
  year = {1995},
  url = {https://ntrs.nasa.gov/citations/19950049052},
  note = {Source identifier: 19950049052}
}