@misc{indiciae8f8914c93d81,
  title = {Partial-reflection studies of D-region winter variability},
  author = {Denny, B. W. and Bowhill, S. A.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740004041},
  note = {Source identifier: 19740004041}
}