@misc{1187496,
  author = {H A Bowman and H A Schoonover and C L Carroll},
  title = {Reevaluation of the densities of the four NBS silicon crystal standards:},
  year = {1975},
  month = {1975-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.75-768},
  language = {en},
}