@misc{indiciae823c267f12a8,
  title = {HEAO A-2 soft X-ray source catalog},
  author = {Nugent, J. J. and Jensen, K. A. and Nousek, J. A. and Garmire, G. P. and Mason, K. O. and Walter, F. M. and Bowyer, C. S.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19830038858},
  note = {Source identifier: 19830038858}
}