@misc{1183761,
  author = {John P Wakefield},
  title = {Earth Terminal Measurement System maintenance manual:},
  year = {1978},
  month = {1978-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.78-895},
  language = {en},
}