@misc{1190971,
  author = {W Q Crichlow},
  title = {The comparative accuracy of various existing and proposed radio navigation systems:},
  year = {1946},
  month = {1946-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.CRPL.4-1},
  language = {en},
}