@misc{indiciaeae7980d02269,
  title = {Impacts of hemispherical granular targets: Implications for global impacts},
  author = {Schultz, P. H. and Gault, D. E. and Crawford, D.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870014057},
  note = {Source identifier: 19870014057}
}