@misc{1185336,
  author = {Joseph B Murdoch},
  title = {A simplified procedure for calculating the directr compnents of contrast rendition factor and equivalent sphere illumination:},
  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.IR.77-1303},
  language = {en},
}