@misc{indiciae2b1af8898f9f,
  title = {Permitted iron lines in NGC 7469},
  author = {Shectman, S. A. and Macalpine, G. M.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750054731},
  note = {Source identifier: 19750054731}
}