@misc{indiciaed6b19e0fca7a,
  title = {High-power broadly tunable difference-frequency generation in proustite.},
  author = {Decker, C. D. and Tittel, F. K.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730043746},
  note = {Source identifier: 19730043746}
}