@misc{indiciaefb76efa3745f,
  title = {Nimbus 4 Michelson interferometer},
  author = {Hanel, R. A. and Rogers, D. and Schlachman, B. and Vanous, D.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710049443},
  note = {Source identifier: 19710049443}
}