@misc{indiciaeee93ac30ffb6,
  title = {Parameter estimation in X-ray astronomy using maximum likelihood},
  author = {Wachter, K. and Leach, R. and Kellogg, E.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790051619},
  note = {Source identifier: 19790051619}
}