@misc{1192001,
  author = {Lewis V Judson},
  title = {Circular of the Bureau of Standards no. 329::calibration of a divided scale},
  year = {1927},
  month = {1927-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.CIRC.329},
  language = {en},
}