@misc{indiciaec4f090ea2733,
  title = {Asteroid impacts - downwind and downstream effects},
  author = {Timothy N. Titus and D. G. Robertson and Joel B. Sankey and Larry G. Mastin},
  year = {2021},
  url = {https://pubs.usgs.gov/publication/70220301},
  note = {Source identifier: 70220301}
}