@misc{1129711,
  author = {Barry N Taylor and Barry N Taylor},
  title = {The international system of units (SI):},
  year = {1991},
  month = {1991-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.330e1991},
  language = {en},
}