@misc{indiciae796de20f2914,
  title = {European Cretaceous flints on the coast of North America},
  author = {K.O. Emery and C. A. Kaye and D.H. Loring and D.J.G. Nota},
  year = {1968},
  doi = {10.1126/science.160.3833.1225},
  url = {https://pubs.usgs.gov/publication/70011484},
  note = {Source identifier: 70011484}
}