@misc{1154486,
  author = {W B Fussell},
  title = {Optical radiation measurements ::Approximate theory of the photometric integrating sphere},
  year = {1974},
  month = {1974-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.TN.594-7},
  language = {en},
}