@misc{1190916,
  author = {R S Kirby and J W Herstreit and K A Norton},
  title = {Service range for air-to-ground communications at frequencies above 50 mc:},
  year = {1951},
  month = {1951-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.CRPL.6-3},
  language = {en},
}