@misc{misc,
  author = {L R Zink},
  title = {NO\&$\#$226;\&$\#$8218;\&$\#$8218; Heterodyne frequency measurements with a tunable diode laser, a CO laser transfer oscillator, and CO\&$\#$226;\&$\#$8218;\&$\#$8218; laser standards,:},
  year = {1987},
  month = {1987-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.TN.1308},
  language = {en},
}