@misc{indiciaee1c55ff16f68,
  title = {A multi-channel coronal spectrophotometer.},
  author = {Landman, D. A. and Orrall, F. Q. and Zane, R.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730050489},
  note = {Source identifier: 19730050489}
}