@misc{773426,
  author = {J Wakefield},
  title = {Addendum to Earth Terminal Measurement System MaintenanceManual},
  year = {1981},
  month = {1981-10-01 00:10:00},
  publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD},
  language = {en},
}