@misc{indiciaeea662010fed4,
  title = {2021 PDC Hypothetical Impact Exercise: Probabilistic Asteroid Impact Risk},
  author = {Lorien F Wheeler and Jessie Dotson and Michael Aftosmis and Donovan Mathias},
  url = {https://ntrs.nasa.gov/citations/20210014604},
  note = {Source identifier: 20210014604}
}