@misc{1187026,
  author = {Raymond C Sangster},
  title = {Transactions matrix description of the National System of Physical Measurement:},
  year = {1976},
  month = {1976-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.75-943},
  language = {en},
}