@misc{25076,
  author = {William Barker},
  title = {Guide for Mapping Types of Information and Information Systems to Security Categories},
  year = {2004},
  month = {2004-07-01},
  publisher = {ITL Bulletin, National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=150438},
  language = {en},
}