@misc{1157966,
  author = {R S Turgel},
  title = {NBS phase angle calibration standard:},
  year = {1981},
  month = {1981-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.TN.1144},
  language = {en},
}