@misc{indiciaeaa1fb2ee8b78,
  title = {Ionospheric flows associated with a transpolar arc},
  author = {Nielsen, E. and Craven, J. D. and Frank, L. A. and Heelis, R. A.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910034370},
  note = {Source identifier: 19910034370}
}