@misc{1157541,
  author = {R S Turgel},
  title = {NBS 50 kHz phase angle calibraion standard:},
  year = {1986},
  month = {1986-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.TN.1220},
  language = {en},
}