@misc{1152736,
  author = {Fred E Nicodemus},
  title = {Self-study manual on optical radiation measurements ::Part I--Concepts, Chapter 6},
  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.TN.910-3},
  language = {en},
}