@misc{indiciae7fc4a09bb0e7,
  title = {Radius-luminosity and mass-luminosity relationships for active galactic nuclei},
  author = {Koratkar, Anuradha P. and Gaskell, C. Martin},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910044060},
  note = {Source identifier: 19910044060}
}