@misc{indiciae1a82511c0ac0,
  title = {Shocked quartz in the Cretaceous-Tertiary boundary clays: Evidence for a global distribution},
  author = {Bruce F. Bohor and P.J. Modreski and Eugene E. Foord},
  year = {1987},
  doi = {10.1126/science.236.4802.705},
  url = {https://pubs.usgs.gov/publication/70014886},
  note = {Source identifier: 70014886}
}