@misc{indiciae667bc6cb8cdc,
  title = {Electron density profiles from ionograms - Comparisons with rocket profiles.},
  author = {Wright, J. W. and Paul, A. K.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730051215},
  note = {Source identifier: 19730051215}
}