@misc{indiciaedb7c81458a8e,
  title = {Coordinated rocket measurements on the D-region winter anomaly. II - Some implications},
  author = {Geller, M. A. and Sechrist, C. F., Jr.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710053618},
  note = {Source identifier: 19710053618}
}