@misc{1156261,
  author = {Paul E Branch and Paul Johann Paulsen},
  title = {Spark source mass spectrograph program, July 1964 to June 1965:},
  year = {1966},
  month = {1966-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.TN.286},
  language = {en},
}