@misc{indiciae4d245961b7cf,
  title = {Steepened structures in equatorial spread F. 2: Theory},
  author = {Hysell, D. L and Seyler, C. E. and Kelley, M. C.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19950033434},
  note = {Source identifier: 19950033434}
}