@misc{indiciae3e5cff53fbb5,
  title = {Chicxulub impact event; computer animations and paper models},
  author = {T. R. Alpha and J. P. Galloway and S. W. Starratt},
  year = {1997},
  doi = {10.3133/ofr97442b},
  url = {https://pubs.usgs.gov/publication/ofr97442B},
  note = {Source identifier: ofr97442B}
}