@misc{1195406,
  author = {William C Barker},
  title = {Volume I ::guide for mapping types of information and information systems to security categories},
  year = {2004},
  month = {2004-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.SP.800-60ver2v1},
  language = {en},
}