@misc{indiciae72fae25952f3,
  title = {Asteroid and comet bombardment of the Earth},
  author = {Eugene Merle Shoemaker},
  year = {1983},
  doi = {10.1146/annurev.ea.11.050183.002333},
  url = {https://pubs.usgs.gov/publication/70227582},
  note = {Source identifier: 70227582}
}