@misc{misc,
  author = {J Andrews and E Baldwin},
  title = {Amplitude Calibrator for Oscilloscopes},
  year = {1981},
  month = {1981-04-01 00:04:00},
  publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD},
  language = {en},
}