@misc{indiciae652fc907113d,
  title = {THE DUMBBELL ELECTROSTATIC IONOSPHERE PROBE- ENGINEERING ASPECTS},
  author = {Brace, L. H. and Carignan, G. R.},
  year = {1961},
  url = {https://ntrs.nasa.gov/citations/19620000558},
  note = {Source identifier: 19620000558}
}