@misc{indiciae93d280fc89b2,
  title = {Expected IPS variations due to a disturbance described by a 3-D MHD model},
  author = {Tappin, S. J. and Dryer, M. and Han, S. M. and Wu, S. T.},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19890033962},
  note = {Source identifier: 19890033962}
}