@misc{indiciae0b264edc7ff1,
  title = {Discrepancies in the observed plasma-trough density},
  author = {Maier, E. J. R. and Serbu, G. P.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700017992},
  note = {Source identifier: 19700017992}
}