@misc{indiciae11bbd9bb48b0,
  title = {Filter Wedge Spectrometer for Field Use},
  author = {Hovis, W. A., Jr. and Kley, W. A. and Strange, M. G.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670051701},
  note = {Source identifier: 19670051701}
}