@misc{1191806,
  author = {J F Swindells and C F Snyder and R C Hardy and P E Golden},
  title = {Supplement to National Bureau of Standards Circular no. 440::},
  year = {1958},
  month = {1958-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.CIRC.440sup},
  language = {en},
}