@misc{indiciaeb4e05eec21d8,
  title = {Observations of galactic X-ray sources.},
  author = {Acton, L. W. and Fisher, P. C. and Jordan, W. C. and Meyerott, A. J. and Roethig, D. T.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680038084},
  note = {Source identifier: 19680038084}
}