@misc{indiciaed7077f30b97c,
  title = {Liquid helium cooled Fabry-Perot spectrometers},
  author = {Okuda, H. and Shibai, H. and Nakagawa, T. and Kobayashi, Y. and Matsumoto, T.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19870049104},
  note = {Source identifier: 19870049104}
}