@misc{indiciaedcf8d2e7bf07,
  title = {Sub-Doppler tunable far-infrared spectroscopy},
  author = {Inguscio, M. and Zink, L. R. and Evenson, K. M. and Jennings, D. A.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880030042},
  note = {Source identifier: 19880030042}
}