@misc{indiciaed451008f1b11,
  title = {Low-Cost, Single-Frequency Sources for Spectroscopy Using Conventional Fabry-Perot Diode Lasers},
  author = {Krainak, Michael A. and Duerksen, Gary L.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/19990039543},
  note = {Source identifier: 19990039543}
}