@misc{1153951,
  author = {F R Walls},
  title = {Servo techniques in oscillators and measurement systems:},
  year = {1976},
  month = {1976-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.TN.692},
  language = {en},
}