@misc{1156081,
  author = {John J Gniewek},
  title = {Spark planing damage in copper:},
  year = {1965},
  month = {1965-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.TN.321},
  language = {en},
}