@misc{indiciaeb41bbe943565,
  title = {The AXAF CCD Imaging Spectrometer Experiment (ACIS)},
  author = {Nousek, J. A. and Garmire, G. P. and Ricker, G. R. and Collins, S. A. and Reigler, G. R.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880036928},
  note = {Source identifier: 19880036928}
}