@misc{1197151,
  author = {Sharrill Dittmann},
  title = {High vacuum standard and its use:},
  year = {1989},
  month = {1989-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.250-34},
  language = {en},
}