@misc{indiciaeb714a9eafbbe,
  title = {X-ray objective grating spectrograph},
  author = {Catura, R. C. and Stern, R. A. and Cash, W. and Windt, D. L. and Culhane, J. L.},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19880062609},
  note = {Source identifier: 19880062609}
}