@misc{indiciaecd4109580ae9,
  title = {40Ar-39Ar dating of the Manson impact structure: A Cretaceous-Tertiary boundary crater candidate},
  author = {Michael J. Kunk and G. A. Izett and R. A. Haugerud and J. F. Sutter},
  year = {1989},
  doi = {10.1126/science.244.4912.1565},
  url = {https://pubs.usgs.gov/publication/70015456},
  note = {Source identifier: 70015456}
}