@misc{indiciaef8aa3c908997,
  title = {Observational Definition of Future AGN Echo-Mapping Experiments},
  author = {Collier, Stefan and Peterson, Bradley M. and Horne, Keith},
  year = {2001},
  url = {https://ntrs.nasa.gov/citations/20040053457},
  note = {Source identifier: 20040053457}
}