@misc{indiciaee1e3c2d4636c,
  title = {Ionization nebulae surrounding supersoft X-ray sources},
  author = {Rappaport, S. and Chiang, E. and Kallman, T. and Malina, R.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19950030863},
  note = {Source identifier: 19950030863}
}