@misc{1172946,
  author = {B R Bean and J D Horn and A M Ozanich},
  title = {Climatic charts and data of the radio refractive index for the United States and the world:},
  year = {1960},
  month = {1960-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.MONO.22},
  language = {en},
}