@misc{indiciaee0e52f1be7d0,
  title = {Line fluorescence from the ring around supernova 1987A},
  author = {Dwek, Eli and Felten, James E.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920044688},
  note = {Source identifier: 19920044688}
}