@misc{indiciae39c5facb25b3,
  title = {LED instrument approach instruction display},
  author = {Meredith, B. D. and Kelly, W. L., IV and Crouch, R. K.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19790009683},
  note = {Source identifier: 19790009683}
}