@misc{1156866,
  author = {Earl S Williams},
  title = {Calibration of volt-ampere converters:},
  year = {1963},
  month = {1963-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.TN.188},
  language = {en},
}