@misc{1163461,
  author = {Robert T Adair and David H Russell},
  title = {A Calibration service for 30 MHz attenuation and phase shift:},
  year = {1988},
  month = {1988-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.250-32},
  language = {en},
}