@misc{1159216,
  author = {Kenneth L Eckerle and J J Hsia},
  title = {Retroreflectance MAP service for coefficient of luminous intensity:},
  year = {1984},
  month = {1984-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.SP.671},
  language = {en},
}