@misc{1165311,
  author = {Andrew C Wall},
  title = {Photometric characteristics of a lens cell of the Fresnel-Lens optical landing system:},
  year = {1964},
  month = {1964-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.RPT.8167},
  language = {en},
}