@misc{indiciaea546622971e4,
  title = {Proton aurora and substorm intensifications},
  author = {Samson, J. C. and Xu, B. and Lyons, L. R. and Newell, P. T. and Creutzberg, F.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940023715},
  note = {Source identifier: 19940023715}
}