@misc{1173056,
  author = {C A Douglas and R L Booker},
  title = {Visual range ::concepts, instrumental determination, and aviation applications},
  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.MONO.159},
  language = {en},
}