@misc{1167151,
  author = {J R Johler and L C Walters and C M Lilley},
  title = {Transfer characteristics of radio waves propagated between the ionosphere and the Earth at very low frequencies:},
  year = {1958},
  month = {1958-09-01 04:09:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.RPT.6002},
  language = {en},
}