@misc{indiciae9602faad5a48,
  title = {Concave-outward slow shocks in coronal mass ejections},
  author = {Steinolfson, R. S. and Hundhausen, A. J.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900063390},
  note = {Source identifier: 19900063390}
}