@misc{1161701,
  author = {Michael A Mitchell and Loren W Linholm},
  title = {Test patterns NBS-28 and NBS-28A:},
  year = {1981},
  month = {1981-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.400-65},
  language = {en},
}