@misc{7486,
  author = {Institute Computer},
  title = {Guidelines for Implementing and Using the NBS Data Encryption Standard},
  year = {1981},
  month = {1981-04-01},
  publisher = {Federal Inf. Process. Stds. (NIST FIPS), National Institute of Standards and Technology, Gaithersburg, MD},
  language = {en},
}