@misc{1195426,
  author = {W C Barker},
  title = {Guideline for identifying an information system as a national security system:},
  year = {2003},
  month = {2003-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.800-59},
  language = {en},
}