@misc{indiciaeabdaef42c24b,
  title = {Method and Apparatus for Accurately Calibrating a Spectrometer},
  author = {Youngquist, Robert C. and Simmons, Stephen M.},
  year = {2013},
  url = {https://ntrs.nasa.gov/citations/20150003148},
  note = {Source identifier: 20150003148}
}