@misc{indiciae858770fe77ee,
  title = {Dependence of polar cap potential drop on interplanetary parameters},
  author = {Reiff, P. H. and Spiro, R. W. and Hill, T. W.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810065290},
  note = {Source identifier: 19810065290}
}