Frequency stabilization and absolute frequency measurements of a CW HF/DF laser

@article{Eng1975FrequencySA,
  title={Frequency stabilization and absolute frequency measurements of a CW HF/DF laser},
  author={R S Eng and Daniel L. Spears},
  journal={IEEE Journal of Quantum Electronics},
  year={1975},
  volume={11},
  pages={909-910}
}