@misc{indiciaeccc1a06eb3b7,
  title = {Statistical analysis of interplanetary shock waves observed during a complete solar activity cycle},
  author = {Khalisi, E. and Schwenn, R.},
  year = {1995},
  url = {https://ntrs.nasa.gov/citations/19960021484},
  note = {Source identifier: 19960021484}
}