@misc{1160501,
  author = {Zella G Ruthberg and Robert G McKenzie},
  title = {Audit and evaluation of computer security:},
  year = {1977},
  month = {1977-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.500-19},
  language = {en},
}