@misc{indiciaea3e45d12cecd,
  title = {Multiple microtektite horizons in upper eocene marine sediments?},
  author = {B.P. Glass},
  year = {1984},
  doi = {10.1126/science.224.4646.309.a},
  url = {https://pubs.usgs.gov/publication/70013617},
  note = {Source identifier: 70013617}
}